Spherical Amides with C3 Symmetry: Improved Synthetic Approach and Structural/Optical Analysis
D. Koike, H. Masu, H. Uno, S. Kikkawa, H. Hikawa, I. Azumaya* Molecules30, 1074 (2025). [Abstract]
Chiral spherical aromatic amides: one-step synthesis and their stereochemical/chiroptical properties
D. Koike, H. Masu, S. Kikkawa, A. Chiba, K. Kamohara, A. Okuda, H. Hikawa, I. Azumaya* Org. Biomol. Chem.23, 145 (2025). [Abstract]
Papers 2024
Silver to Gold Metallic Luster Changes in Stimuli-Responsive Diacetylene Derivatives Uniquely Arranged within Crystals
K. Tachibana, Y. Kojima, H. Masu, N. Ichikuni, H. Takahashi, K. Akiyama, K. Nakamura, N. Kobayashi, S. Ichikawa, Y. Kondo, Y. Oaki, J. Matsui, S. Okada, T. Omatsu, K. Kishikawa, M. Kohri* ACS Appl. Mater. Interfaces16, 63904 (2024). [Abstract]
Magnetic Supramolecular Spherical Arrays: Direct Formation of Micellar Cubic Mesophase by Lanthanide Metallomesogens with 7‐Coordination Geometry
N. Komiyama, T. Ohkubo*, Y. Maeda, Y. Saeki, N. Ichikuni, H. Masu, H. Kanoh, K. Ohara, R. Takahashi, H. Wadati, H. Takagi, Y. Miwa, S. Kutsumizu, K. Kishikawa, M. Kohri* Adv. Sci.11, 2309226 (2024). [Abstract]
Papers 2023
Solvent-Dependent Conformational Switching of N-Methyl-N,N′-diarylsquaramide
K. Tanaka, F. Takeda, M. Kanda, M. Kawahata, S. Fujii, K. Katagiri, H. Masu, H. Kagechika, A. Tanatani* J. Org. Chem.88, 12289 (2023). [Abstract]
Phase Transition Field Effect Transistor Observed in an α-(BEDT-TTF)2I3 Single Crystal
R. Ando, R. Watanuki, K. Kudo, H. Masu, M. Sakai* Solids4, 201 (2023). [Abstract]
Molecular Dynamics Studies of the Ho(III) Aqua-tris(dibenzoylmethane) Complex: Role of Water Dynamics
T. Ohkubo*, N. Komiyama, H. Masu, K. Kishikawa, M. Kohri* Inorg. Chem.62, 11897 (2023). [Abstract]
Nonswitchable and switchable pyroelectric organic crystals produced from diphenylureas with chiral side chains and racemic side chains
A. Akiyama, H. Masu, M. Kohri, K. Kishikawa* Mater. Lett.343, 134363 (2023). [Abstract]
Comparative Studies on [B(HFIP)4]-Based Electrolytes with Mono- and Divalent Cations
T. Mandai*, H. Naya, H. Masu J. Phys. Chem. C127, 7897 (2023). [Abstract]
Enhanced Circularly Polarized Luminescence by a Homochiral Guest–Host Interaction in Gyroidal MOFs, [Ru(bpy)3] [M2(ox)3] (bpy = 2,2′-Bipyridyl, ox = Oxalate, M = Zn, Mn)
K. Nakashima, R. Suizu, S. Morishita, N. Tsurumachi, M. Funahashi, H. Masu, R. Ozawa, K. Nakamura, K. Awaga* ACS Mater. Au3, 201 (2023). [Abstract]
Asymmetric Friedel–Crafts-Type Reaction of 2-Vinylindoles to N-Boc Imines Using a Chiral Imidazolidine-Containing NCN-Pincer Pd Catalyst
T. Yokota, H. Masu, T. Arai* J. Org. Chem.88, 7872 (2023). [Abstract]
Conformational Properties of Aromatic Amides Bearing Imidazole Ring and Acid-Induced Trans–Cis Amide Switching
C. Takubo, S. Kimura, M. Ichinomiya, A. Hayakawa, M. Murata, K. Urushibara, H. Masu, K. Katagiri, M. Kawahata, M. Kudo, I. Azumaya, H. Kagechika, A. Tanatani* J. Org. Chem.88, 16707 (2023). [Abstract]
Papers 2022
Dry Printing of Ag–Ni Conductive Particles Using Toner-Type Printed Electronics
F. Sawamura, C.Y. Ngu, R. Hanazaki, K. Kozuki, S. Kado, M. Sakai*, K. Kudo Appl. Sci.12, 9616 (2022). [Abstract]
Borocyclic Radicals Prepared from Orthoquinone-Containing Polycyclic Aromatics by Photoirradiation
K. Urakawa, Y. Yatsuoka, Y. Kawabata, H. Masu, M. Matsuda*, H. Ishikawa* J. Org. Chem.87, 3647 (2022). [Abstract]
Effective Method for Multi-Probe Electrical Measurements of Organic Single Crystals: Four-Terminal Natural Adhesion Contact
H. Watanabe, S. Ushikubo, M. Sakai*, K. Kudo, H. Masu Solids3, 311 (2022). [Abstract]
Colorless Magnetic Colloidal Particles Based on an Amorphous Metal-Organic Framework Using Holmium as the Metal Species
Y. Fujita, K. Kohaku, N. Komiyama, K. Ujiie, H. Masu, T. Kojima, H. Madati, H. Kanoh, K. Kishikawa, M. Kohri* ChemNanoMat8, e202200078 (2022). [Abstract]
Papers 2021
Salt Cocrystallization of Loxoprofen Sodium with Sugar: Reduction of the Propensity for Hydrate Formation by Forming a Continuous One-Dimensional Chain Structure of Sodium and Sugar
T. Fujito, T. Oshima, K. Higashi, K. Ueda, M. Ito, H. Masu, S. Noguchi, K. Moribe* Cryst. Growth Des.22, 1094 (2021). [Abstract]
Formulation of Diffraction Intensity of Ionic Plastic Crystal and Its Application to Trimethylethylammonium Bis(fluorosulfonyl)amide
K. Nishikawa*, T. Yamada, K. Fujii, H. Masu, K. Tozaki, T. Endo Bull. Chem. Soc. Jpn.94, 2011 (2021). [Abstract]
Papers 2020
Characterization of Photographic Emulsions for Autoradiography
K. Kuge, M. Okubo, N. Naganawa, H. Masu, H. Suzuki Bull. Soc. Photogr. Imag. Japan.30, 5 (2020). [Abstract]
Structural Dynamics of An ELM-11 Framework Transformation Accompanied with Double-Step CO2 Gate sorption: An NMR Spin Relaxation Study
K. Ohazama, T. Ueda,* K. Ukai, M. Ichikawa, H. Masu, H. Kajiro, H. Kanoh* Crystals10, 328 (2020). [Abstract]
Tetranuclear and 1D Polymeric Cd(II) Complexes with a Tetrapyridyl Imidazolidine Ligand: Synthesis, Structure, and Fluorescence Sensing Activity
A. Paul, E. Zangrando, A. Patra, M. K. Mahish, D. Saren, H. Masu, S. C. Manna* Cryst. Growth Des.20, 2904-2913 (2020). [Abstract]
Development of Helical Aromatic Amide Foldamers with a Diphenylacetylene Backbone
K. Urushibara, T. Yamada, A. Yokoyama,* H. Mori, H. Masu, I. Azuma, H. Kagechika, T. Yokozawa,* A. Tanatani* J. Org. Chem.85, 2019-2039 (2020). [Abstract]
Synthesis and chiroptical properties of cylindrical macrocycles comprising two calix[3]aramide moieties
Y. Saito, M. Satake, R. Mori, M. Okayasu, H. Masu, M. Tominaga, K. Katagiri, K. Yamaguchi, S. Kikkawa, H. Hikawa, I. Azumaya* Org. Biomol. Chem.18, 230-236 (2020). [Abstract]
Papers 2019
Catalytic Asymmetric Synthesis of Chiral Bis(indolyl)methanes Using a Ts-PyBidine–Nickel Complex
R. Sato, T. Tosaka, H. Masu, T. Arai* J. Org. Chem.84, 14248-14257 (2019). [Abstract]
Impact of Temperature on the Fusion Growth of Bimetallic Au–Pt Nanoparticles from Each Nanocluster Conjugated with a Thermoresponsive Polymer
T. Morita,* T. Suzuki, Y. Itoh, T. Konishi,* C. Haneishi, N. Sonoda, T. Itoh, H. Masu, T. Okajima, H. Setoyama, N. Uehara* Cryst. Growth Des.19, 6199-6206 (2019). [Abstract]
Crystal structure of butane-1,4-diyl bis(furan-2-carboxylate)
M. Hoshide, H. Masu, Y. Sasanuma* Acta Cryst.E75, 872-874 (2019). [Abstract]
Bis(imidazolidine)pyridine-CoCl2: A Novel, Catalytically Active Neutral Complex for Asymmetric Michael Reaction of 1,3-Carbonyl Compounds with Nitroalkenes
T. Arai,* Y. Iimori, M. Shirasugi, R. Shinohara, Y. Takagi, T. Suzuki, J. Ma, S. Kuwano, H. Masu Adv. Synth. Catal.361, 3704-3711 (2019). [Abstract]
Characteristic Hydrogen Bonding Observed in the Crystals of Aromatic Sulfonamides: 1D Chain Assembly of Molecules and Chiral Discrimination on Crystallization
S. Kikkawa, H. Masu, K. Katagiri, M. Okayasu, K. Yamaguchi, H. Danjo, M. Kawahata, M. Tominaga, Y. Sei, H. Hikawa, I. Azumaya* Cryst. Growth Des.19, 2936-2946 (2019). [Abstract]
Modifications in coordination structure of Mg[TFSA]2-based supporting salts for high-voltage magnesium rechargeable batteries
T. Mandai,* K. Tatesaka, K. Soh, H. Masu, A, Choudhary, Y. Tateyama, R. Ise, H. Imai, T. Takeguchi, K. Kanamura Phys. Chem. Chem. Phys.21, 12100-12111 (2019). [Abstract]
Spontaneous chiral resolution of N,N′-diarylsquaramides: Formation of various types of one-handed helical networks during crystallization
M. Kanda, K. Urushibara, S. Park, S. Fujii, H. Masu, K. Katagiri, I. Azumaya, H. Kagechika, A. Tanatani* Tetrahedron75, 2771-2777 (2019). [Abstract]
Two new μ2-(1,1-azido) and μ2-(1,1-phenoxido)-bridged dinuclear nickel(II) complexes: Syntheses, single-crystal structures and magnetic studies
S. C. Manna,* S. Dolai, H. Masu, A. Figuerola,* S. Manna J. Mol. Struct.1180, 849-854 (2019). [Abstract]
Diacylglycerol kinase α-selective inhibitors induce apoptosis and reduce viability of melanoma and several other cancer cell lines
A. Yamaki, R. Akiyama, C. Murakami, S. Takao, Y. Murakami, S. Mizuno, D. Takahashi, S. Kado, A. Taketomi, Y. Shirai, K. Goto, F. Sakane J Cell Biochem. 120, 10043-10056 (2019). [Abstract]
Microarray analysis of gene expression in the diacylglycerol kinase η knockout mouse brain
S. Komenoi, Y. Suzuki, M. Asami, C. Murakami, F. Hoshino, S. Chiba, D. Takahashi, S. Kado, F. Sakane* Biochem. Biophys. Rep.19, 100660 (2019). [Abstract]
Papers 2018
Morphological and Physicochemical Evaluation of Two Distinct Glibenclamide/Hypromellose Amorphous Nanoparticles Prepared by the Antisolvent Method
H. Yonashiro, K. Higashi,* C. Morikawa, K. Ueda, T. Itoh, M. Ito, H. Masu, S. Noguchi, K. Moribe Mol. Pharm.15, 1587-1597 (2018). [Abstract]
Chemosynthetic homologues of Mycoplasma pneumoniae β-glycolipid antigens for the diagnosis of mycoplasma infectious diseases
K. Fukuda, K. Matsuda, S. Matsuda, S. Kado, H. Masu, H. Dohi, Y. Nishida* Bio. Med. Chem.26, 824-832 (2018). [Abstract]
Papers 2016
Molecular design for tuning electronic structure of π-conjugated polymers containing fused dithienobenzimidazole units
K. Takagi,* T. Kuroda, M. Sakaida, H. Masu Polymer107, 191-199 (2016). [Abstract]
Adamantane-based Bidendate Metal Complexes in Crystalline and Solution State
K. Ohara,* M.Tominaga, H. Masu, I.Azumaya, K. Yamaguchi* Anal. Sci.32, 1347-1352 (2016). [Abstract]
Synthesis and Optical Properties of π-Conjugated Polymers Containing Fused Imidazole Skeleton
K. Takagi,* T. Miwa, H. Masu Macromolecules49, 8879-8887 (2016). [Abstract]
PyBidine-Ni(OAc)2-Catalyzed Michael/Aldol Reaction of Methyleneindolinones and Thiosalicylaldehydes for Stereochemically Divergent Thiochromanyl-spirooxindoles
T. Arai,* T. Miyazaki, H. Ogawa, H. Masu Org. Lett.18, 5824-5827 (2016). [Abstract]
Fluorine-free salts for aqueous lithium-ion and sodium-ion battery electrolytes
E. H. B. Anari, A. Boschin, T. Mandai, H. Masu, K. M. Poulsen,* P, Johansson* RSC Adv.6, 85194-85201 (2016). [Abstract]
Catalyst-Free and Regioconvergent Substitution Reactions of Bromothiophenes with a BH3-Substituted Phosphide Anion
T. Imamoto,* Y. Horiuchi, K. Tamura, M. Sugiya, H. Masu Org. Lett.18 , 4132-4135 (2016). [Abstract]
Cerasoidine, a Bis-aporphine Alkaloid Isolated from Polyalthia cerasoides during Screening for Wnt Signal Inhibitors
T. Shono, N. Ishikawa, K. Toume, M. A. Arai, H. Masu, T. Koyano, T. Kowithayakorn, M. Ishibashi* J. Nat. Prod.79, 2083-2088 (2016). [Abstract]
Partial Dissolution of Charge Order Phase Observed in -(BEDT-TTF)2PF6 Single Crystal Field Effect Transistor
M. Sakai, N. Moritoshi, S. Kuniyoshi, H. Yamauchi, K. Kudo, H. Masu J. Nanosci. Nanotechnol.16, 3267-3272 (2016). [Abstract]
Formation of Benzimidazoisoquinolinium and Benzimidazoisoindolinum Cyclic Systems by the Reaction of 2-(2-Alkynylphenyl)benzimidazoles with Iodine and Iodine-Iodine Interaction Including Halogen Bonding in Their Crystal Structures
S. Matsumoto,* S. Kikuchi, N. Norita, H. Masu, M. Akazome J. Org. Chem.81, 5322-5329 (2016). [Abstract]
Synthesis and Conformational Analysis of Quinoline-Oxazole Peptides
M. Kudo, D. Carbajo Lopez, V. Maurizot, H. Masu, A. Tanatani,* I. Huc* Eur. J. Org. Chem. 2457-2466 (2016). [Abstract]
Synthesis and crystal structures of twisted three-dimensional assemblies of adamantane-bridged tris-NHC ligands and AgⅠ
M. Tominaga,* T. Kawaguchi, K. Ohara, K. Yamaguchi, H. Masu, I. Azumaya.* CrystEngComm18, 266-273(2016). [Abstract]
Fused π-conjugated imidazolium liquid crystals:synthesis,self-organization,and fluorescence properties
K. Takagi,* K. Yamauchi, S. Kubota, S. Nagano, M. Hara, T. Seki, K. Murakami, Y. Ooyama, J. Ohshita, M. Kondo, H. Masu RSC Adv.6, 9152-9159 (2016). [Abstract]
Papers 2015
A monomeric [Zr(CO3)4]4- complex in an ammonium zirconium carbonate aqueous solution studied by extended X-ray absorption fine structure, Raman and nuclear magnetic resonance spectroscopy
F. Takasaki,* K. Fujiwara,* Y. Nakajima, T. Nishikawa, H. Masu, M. Imanari,Y. Hidaka, N. Ogawa* Dalton Trans.44, 645-652 (2015). [Abstract]
Conformational and Chiral Properties of Cyclic-tri(N-methyl-meta-benzamide) Bearing Amidino Groups
S. Nishiyama, K. Urushibara, H. Masu, I. Azumaya, H. Kagechika, A. Tanatani* Chirality27, 487-491 (2015). [Abstract]
Chiral Bis(imidazolidine)-Derived NCN Pincer Rh Complex for Catalytic Asymmetric Mannich Reaction of Malononitrile with N-Boc Imines
T. Arai,* T. Moribatake, H. Masu Chem. Eur. J.21, 10671-10675 (2015). [Abstract]
Extraordinary aluminum coordination in a novel homometallic double complex salt
T. Mandai,* H. Masu, P. Johansson Dalton Trans.44, 11259-11263 (2015). [Abstract]
Piezoluminescence and Liquid Crystallinity of 4,4'-(9,10-Anthracenediyl)bispyridinium Salts
S. Kohmoto,* T. Chuko, S. Hisamatsu, Y. Okuda, H. Masu, M. Takahashi, K. Kishikawa Cryst. Growth Des.15, 2723-2731 (2015). [Abstract]
Pairwise Packing of Anthracene Fluorophore: Hydrogen-Bonding-Assisted Dimer Emission in Solid State
S. Hisamatsu, H. Masu, M. Takahashi, K. Kishikawa, S. Kohmoto* Cryst. Growth Des.15, 2291-2302 (2015). [Abstract]
BF3-Mediated cis-Selective Cycloaddition of O-Silyloxime with Alkenes
N. Morita, R. Kono, K. Fukui, A. Miyazawa, H. Masu, I. Azumaya, S. Ban, Y. Hashimoto, I. Okamoto, O. Tamura* J Org Chem.80, 4797-4802 (2015). [Abstract]
Diastereoselective cyclization of an aminobenzoic acid derivative and chiroptical properties of triple-stranded helical bis(phenylethynyl)benzene
R. Yamakado, S. Matsuoka, M. Suzuki, D. Takeuchi, H. Masu, I. Azumaya, K. Takagi* Chem. Commun.51, 5710-5713 (2015). [Abstract]
Folded-to-unfolded structural switching of a macrocyclic aromatic hexaamide based on conformation changes in the amide groups induced by N-alkylation and dealkylation reactions
K. Katagiri, T. Tohayai, R. Shirai, T. Kato, H. Masu, M. Tominaga, I. Azumaya* J. Mol. Struct.1082, 23-28 (2015). [Abstract]
Effect of Ionic Size on Solvate Stability of Glyme-Based Solvate Ionic Liquids
T. Mandai, K. Yoshida, S. Tsuzuki, R. Nozawa, H. Masu, K. Ueno, K. Dokko, M. Watanabe* J Phys Chem B.119, 1523-1534 (2015). [Abstract]
Papers 2014
Bis(imidazolidine)pyridine-NiCl2 Catalyst for Nitro-Mannich Reaction of Isatin-Derived N-Boc Ketimines: Asymmetric Synthesis of Chiral 3-Substituted 3-Amino-2-oxindoles
T. Arai,* E. Matsumura, H. Masu Org. Lett.16, 2768-2771 (2014). [Abstract]
Crystal Structures of S-shaped Phenylenediurea Dibenzoic Acids and Their Cocrystals with Melamine: Unusual Zigzag Tape of H-bonded Melamine Network
S. Kohmoto,* S. Sekizawa, S. Hisamatsu, H. Masu, M. Takahashi, K. Kishikawa Cryst. Growth Des.14, 2209-2217 (2014). [Abstract]
An Imidazoline-Aminophenol (IAP) Nickel Catalyst: Structure and Catalytic Activity in the Enantioselective 1,4-Addition of 3′-Indolyl-3-Oxindoles to Nitroethylene
A. Awata, M. Wasai, H. Masu, S. Kado, T. Arai* Chem. Eur. J.20, 2470-2477 (2014). [Abstract]
Preparation and Characterization of Oligo(9,9’-p-tolyl-3,3’-bicarbazyl) and Its Application to Transparent Conducting Materials
Y. Kim, T. Tokuda, F. Yagishita, H. Masu, M. Kubo, K. Murashiro, K. Hoshino* Chem. Lett.43, 89-91 (2014). [Abstract]
Synthesis, Structure, and Thermal Stability of Silver(I) Coordination Polymers with Bis(pyridyl) Ligands Linked by an Aromatic Sulfonamide: One-Dimensional-Straight Chain, One-Dimensional-Columnar with Helical Components, and Two-Dimensional-Layer Network Structures
K. Katagiri,* T. Sakai, M. Hishikawa, H. Masu, M. Tominaga, K. Yamaguchi, I. Azumaya* Cryst. Growth Des.14, 199-206 (2014). [Abstract]
A trinuclear Zn3(OAc)4-3,3'-bis(aminoimino)binaphthoxide complex for highly efficient catalytic asymmetric iodolactonization
T. Arai,* N.Sugiyama, H. Masu, S. Kado, S. Yabe, M. Yamanaka Chem. Comm.50, 8287-8290 (2014). [Abstract]
Structural elucidation of foldamers with no long range conformational order
M. Kudo, V. Maurizot, H. Masu, A. Tanatini,* I. Huc* Chem. Comm.50, 10090-10093 (2014). [Abstract]
N,N′-(Propane-1,3-di-yl)dibenzothioamide
M. Nagasawa, Y. Sasanuma,* H. Masu Acta Cryst.E70, o639 (2014). [Abstract]
N,N'-(Ethane-1,2-di-yl)dibenzenecarbothioamide
M. Nagasawa, Y. Sasanuma,* H. Masu Acta Cryst.E70, o586 (2014). [Abstract]
Solution-cast Self-assembled Films of Perchlorate-doped Oligo(3-methoxythiophene) Showing a Goldlike Luster
R. Tagawa, H. Masu, T. Itoh, K. Hoshino* RSC Adv.4, 24053-24058 (2014). [Abstract]
Synthesis, reaction, and optical properties of cyclic oligomers bearing 9,10-diphenylanthracene based on an aromatic tertiary amide unit
R. Yamakado, S. Matsuoka, M. Suzuki, D. Takeuchi, H. Masu, I. Azuyama, K. Takagi* RSC Adv.4, 6752-6760 (2014). [Abstract]
Identification of the Active Species for Scandium Extraction by Phoslex DT-8
D. Abe, S. Kado, K. Tamura, H. Seki, K. Fujinaga, H. Masu* Solvent extr. res. dev. jpn.21, 65-70 (2014). [Abstract]
Papers 2013
Pseudopolymorphism and Polymorphic Transition Behavior of N-(4'-Methoxyphenyl)-2-naphthalenesulfonamide
T. Sakai, K. Katagiri, Y. Uemura, H. Masu, M. Tominaga, I. Azumaya* Cryst. Growth Des.13, 308-314 (2013). [Abstract]
Synthesis of porphyrinylamide and observation of N-methylation-induced trans-cis amide conformational alteration
M. Matsumura, A. Tanatani,* T. Kaneko, I. Azumaya, H. Masu, D. Hashizume, H. Kagechika, A. Muranaka,* M. Uchiyama* Tetrahedron69, 10927-10932 (2013). [Abstract]
Deracemization of Axially Chiral Nicotinamides by Dynamic Salt Formation with Enantiopure Dibenzoyltartaric Acid (DBTA)
F. Yagishita, N. Kamataki, K. Okamoto, S. Kanno, T. Mino, H. Masu, M. Sakamoto* Molecules18, 14430-14447 (2013). [Abstract]
Determination of Missing Crystal Structures in the 1 Alkyl-3-methylimidazolium Hexafluorophosphate Series: Implications on Structure-Property Relationships
T. Endo,* H. Masu,* K. Fujii, T. Morita, H. Seki, S. Sen, K. Nishikawa Cryst.Growth Des.13, 5383-5390 (2013). [Abstract]
Characterization of cromolyn sodium hydrates and its formulation by 23Na-multiquantum and magic-angle spinning nuclear magnetic resonance spectroscopy
M. Umino, K. Higashi, H. Masu, W. Limwikrant, K. Yamamoto, K. Moribe* J. Pharm. Sci.102, 2738-2747 (2013). [Abstract]
Conformation-Directed Hydrogen-Bonding in meta-Substituted Aromatic Ureadicarboxylic Acid: A Conformationally Flexible U-Shaped Building Block
S. Hisamatsu, H. Masu, M. Takahashi, K. Kishikawa, S. Kohmoto* Cryst. Growth Des.13, 2327-2334 (2013). [Abstract]
Asymmetric Transformation by Dynamic Crystallization of Achiral Succinimides
S. Hachiya, Y. Kasashima, F. Yagishita, T. Mino, H. Masu, M. Sakamoto* Chem. Commun.49, 4776-4778 (2013). [Abstract]
Ni-Catalyzed [4+3+2] Cycloaddition of Ethyl Cyclopropylideneacetate and Dienynes: Scope and Mechanistic Insights
R. Yamasaki, M. Ohashi, K. Maeda, T. Kitamura, M. Nakagawa, K. Kato, T. Fujita, R. Kamura, K. Kinoshita, H. Masu, I. Azumaya, S. Ogoshi,* S. Saito* Chem. Eur. J.19, 3415-3425 (2013). [Abstract]
Hydrogen-Bonded 1D Chains Formed from Adamantane-Based Bisphenols and Bispyridines: Influences of Substitution Groups on Phenol Ring
H. Masu, M. Tominaga,* I. Azumaya* Cryst. Growth Des.13, 752-758 (2013). [Abstract]
A Neutral, Chiral, Bis(imidazolidine)-Derived NCN-Type Palladium Pincer Complex with Catalytic Activity
T. Arai,* I. Oka, T. Morihata, A. Awata, H. Masu Chem. Eur. J.19, 1554-1557 (2013). [Abstract]
Unusual conformational preference of an aromatic secondary urea: solvent-dependent open-closed conformational switching of N,N'-bis(porphyrinyl)urea
M. Matsumura, A. Tanatani,* I. Azumaya, H. Masu, D. Hashizume, H. Kagechika, A. Muranaka,* M. Uchiyama* Chem. Commun.49, 2290-2292 (2013). [Abstract]
Papers 2012
Synthesis and properties of phenylogous amides
R. Yamasaki,* H. Ikeda, H. Masu, I. Azumaya, S. Saito* Tetrahedron68, 8450-8456 (2012). [Abstract]
Preparation and Characterization of Conducting Mixed-Valence 9,9'-Dimethyl-3,3'-bicarbazyl Rectangular Nanowires
T. Tokuda, K. Murashiro, M. Kubo, H. Masu, M. Imanari, H. Seki, N. Aoki, Y. Ochiai, H. Kanoh, K. Hoshino* Langmuir28, 16430-16435 (2012). [Abstract]
Redox-responsive conformational alteration of aromatic amides bearing N-quinonyl system
I. Okamoto,* Y. Takahashi, M. Sawamura, M. Matsumura, H. Masu, K. Katagiri, I. Azumaya, M. Nishino, Y. Kohama, N. Morita, O. Tamura, H. Kagechika, A. Tanatani* Tetrahedron68, 5346-5355 (2012). [Abstract]
Quantum Molecular Sieving Effects of H2 and D2 on Bundled and Nonbundled Single-Walled Carbon Nanotubes
H. Kagita, T. Ohba,* T. Fujimori, H. Tanaka, K. Hata, S. Taira, H. Kanoh, D. Minami, Y. Hattori, T. Itoh, H. Masu, M. Endo, K. Kaneko* J.Phys.Chem.C.116, 20918-20922 (2012). [Abstract]
Enantioselective Construction of a Polyhydroxylated Pyrrolidine Skeleton from 3-Vinylaziridine-2-carboxylates: Synthesis of (+)-DMDP and a Potential Common Intermediate for (+)-Hyacinthacine A1 and (+)-1-epi-Australine
Y. Kondo, N. Suzuki, M. Takahashi, T. Kumamoto, H. Masu,T. Ishikawa* J. Org. Chem.77, 7988-7999 (2012). [Abstract]
Cocrystals of U-shaped Ureadicarboxylic Acids with 2-Aminopyrimidine and Melamine: Rhombus-shaped Cyclic Heterotetramer Motifs
S. Hisamatsu, H. Masu, M. Takahashi, K. Kishikawa, S. Kohmoto* Tetrahedron Lett.53, 3903-3906 (2012). [Abstract]
Katorazone, a new yellow pigment with a 2-azaquinone- phenylhydrazone structure produced by Streptomyces sp. IFM 11299
M. S. Abdelfattah, K. Toume, M. A. Arai, H. Masu, M. Ishibashi* Tetrahedron Lett.53, 3346-3348 (2012). [Abstract]
Linker-length dependence of crystal structures and thermal properties of bis(imidazolium) salts with tetrafluoroborate anion
T. Mandai,* H. Masu, H. Seki, K. Nishikawa* Bull. Chem. Soc. Jpn.85, 599-605 (2012). [Abstract]
Crystal Structure of zwitterionic bisimidazolium sulfonates
S. Kohmoto,* S. Okuyama, N. Yokota, M. Takahashi, K. Kishikawa, H. Masu, I. Azumaya J. Mol. Struct.1015, 6-11 (2012). [Abstract]
Polymorphism of Aromatic Sulfonamides with Fluorine Groups
S. Terada, K. Katagiri, H. Masu, H. Danjo, Y. Sei, M. Kawahata, M. Tominaga, K. Yamaguchi, I. Azumaya* Cryst. Growth Des.12, 2908-2916 (2012). [Abstract]
Electrosynthesis of conducting mixed-valence 9,9′-dimethyl-3,3′-bicarbazyl rectangular nanotubes
K. Hoshino,* K. Takizawa, M. Kubo, K. Murashiro, N. Aoki, Y. Ochiai, H. Masu RSC Adv.2, 4072-4074 (2012). [Abstract]
Molecular chirality and chiral capsule-type dimer formation of cyclic triamides via hydrogen-bonding interactions
N. Fujimoto, M. Matsumura, I. Azumaya,* S. Nishiyama, H. Masu, H. Kagechika, A. Tanatani* Chem. Commun.48, 4809-4811 (2012). [Abstract]
[5 + 2] Cycloaddition Reaction of 2-Vinylaziridines and Sulfonyl Isocyanates. Synthesis of Seven-Membered Cyclic Ureas
E. Kanno, K. Yamanoi, S. Koya, I. Azumaya, H. Masu, R. Yamasaki, S. Saito* J. Org. Chem.77, 2142-2148 (2012). [Abstract]
Comparison between Cycloalkyl- and n-Alkyl-Substituted Imidazolium-Based Ionic Liquids in Physicochemical Properties and Reorientational Dynamics
T. Mandai, H. Masu, M. Imanari, K. Nishikawa* J.Phys.Chem.B.116, 2059-2064 (2012). [Abstract]
Papers 2011
Acid-induced conformational alteration of cis-favored aromatic amides bearing N-methyl-N-(2-pyridyl) moiety
I. Okamoto,* M. Terashima, M. Nabeta, K. Ono, N. Morita, T. Kato, K. Katagiri, H. Masu, I. Azumaya, O. Tamura Tetrahedron67, 8536-8543 (2011). [Abstract]
U-Shaped Aromatic Ureadicarboxylic Acids as Versatile Building Blocks: Construction of Ladder and Zigzag Networks and Channels
S. Hisamatsu, H. Masu, I. Azumaya, M. Takahashi, K. Kishikawa, S. Kohmoto* Cryst.Growth Des.11, 5387-5395 (2011). [Abstract]
Crystal Structure of Hydrates of Imidazolium Salts
S. Kohmoto,* S. Okuyama, T. Nakai, M. Takahashi, K. Kishikawa, H. Masu, I. Azumaya J. Mol. Struct.998, 192-197 (2011). [Abstract]
Generation of Zwitterionic Water Channels: Biszwitterionic Imidazolium Carboxylates as Hydrogen-bonding Acceptors
S. Kohmoto,* S. Okuyama, N. Yokota, M. Takahashi, Ke. Kishikawa, H. Masu, I. Azumaya Cryst.Growth Des.11, 3698-3702 (2011). [Abstract]
Pseudopolymorphism of an Adamantane-based Bisphenol Containing Water Molecules: a Role of Clathrate Hydrates in Hydrogen-bonded Networks
M. Tominaga,* H. Masu, I. Azumaya* CrystEngComm.13, 5299-5302 (2011). [Abstract]
Catalytic Asymmetric Friedel-Crafts/Protonation of Nitroalkenes and N-Heteroaromatics
T. Arai,* A. Awata, M. Wasai, N. Yokoyama, H. Masu J.Org.Chem.76, 5450-5456 (2011). [Abstract]
Synthesis and Structure of Dinuclear Silver(I) and Palladium(II) Complexes of 2,7-Bis(methylene)naphthalene-Bridged Bis-N-Heterocyclic Carbene Ligands
S. Saito,* M. Saika, R. Yamasaki, I. Azumaya, H. Masu Organometallics30, 1366-1373 (2011). [Abstract]
Hydrogen-Bonding Networks of Adamantane-Based Bisphenol Molecules: Toward the Preparation of Molecular Crystals with Channels
M. Tominaga,* H. Masu, I. Azumaya* Cryst. Growth Des.11, 542-546 (2011). [Abstract]
Crystal structure of spherical aromatic amide:pseudopolymorphs and formation of infinite water cluster in the channel structure H. Masu, Y. Sagara, F. Imabeppu, H. Takayanagi, K. Katagiri, M. Kawahata, M. Tominaga, H. Kagechika, K. Yamaguchi, I. Azumaya* CrystEngComm.13, 406-409 (2011). [Abstract]
Calix[3]amide-based Anion Receptors: High Affinity for Fluoride Ions and a Twisted Binding Model
K. Katagiri, I. Furuyama, H. Masu, T. Kato, M. Matsumura, M. Uchiyama, A. Tanatani, M. Tominaga, H. Kagechika, K. Yamaguchi, I. Azumaya* Supramolecular Chem.23, 125-130 (2011). [Abstract]
Reviews and Books
芳香族アミドを用いたブロック分子のデザインと合成および結晶中において形成される特徴的なナノ構造（寄稿論文） 桝飛雄真, 東屋功 TCIメール, 152, 2-22 (2012). [Full Text (PDF)]
