論文 - 依馬 正
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Lipase-catalyzed efficient kinetic resolution of 3-Hydroxy-3-(pentafluorophenyl)propionitrile
Takashi Sakal, Tetsuo Takayama, Takafumi Ohkawa, Osamu Yoshio, Tadashi Ema, Masanori Utaka
Tetrahedron Letters 38 ( 11 ) 1987 - 1990 1997年3月
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New optically active diporphyrin having a chiral cyclophane as a spacer
Tadashi Ema, Shigeharu Misawa, Shuichi Nemugaki, Takashi Sakai, Masanori Utaka
Chemistry Letters ( 6 ) 487 - 488 1997年
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Kinetic resolution of racemic 2-substituted 3-cyclopenten-1-ols by lipase-catalyzed transesterifications: A rational strategy to improve enantioselectivity
Tadashi Ema, Soichi Maeno, Yusuke Takaya, Takashi Sakai, Masanori Utaka
Journal of Organic Chemistry 61 ( 24 ) 8610 - 8616 1996年11月
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Significant effect of acyl groups on enantioselectivity in lipase-catalyzed transesterifications
Tadashi Ema, Soichi Maeno, Yusuke Takaya, Takashi Sakai, Masanori Utaka
Tetrahedron Asymmetry 7 ( 3 ) 625 - 628 1996年3月
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Highly efficient and convenient regeneration of NADPH for asymmetric reduction using bakers' yeast cell free extract
Masanori Utaka, Tomoko Yano, Ema Tadashi, Takashi Sakai
Chemistry Letters ( 12 ) 1079 - 1080 1996年
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Unusual picosecond 1(π, π*) deactivation of ruffled nonplanar porphyrins
Steve Gentemann, Craig J. Medforth, Tadashi Ema, Nora Y. Nelson, Kevin M. Smith, Jack Fajer, Dewey Holten
Chemical Physics Letters 245 ( 4-5 ) 441 - 447 1995年11月
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Molecular recognition: New chiral metalloporphyrins as receptor models
Hisanobu Ogoshi, Tadashi Ema, Yusuke Kato, Tadashi Mizutani, Yasuhisa Kuroda
Supramolecular Chemistry 6 ( 1-2 ) 115 - 124 1995年10月
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Synthesis and CD spectrum of chiral porphyrin dimer
Tadashi Ema, Shuichi Nemugaki, Sadao Tsuboi, Masanori Utaka
Tetrahedron Letters 36 ( 33 ) 5905 - 5908 1995年8月
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Restricted internal rotation of amino acid esters. Quantitative evaluation of rigidity of a molecule in terms of internal rotation entropy
Tadashi Mizutani, Tadashi Ema, Hisanobu Ogoshi
Tetrahedron 51 ( 2 ) 473 - 484 1995年1月
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Crystal structure of a remarkably ruffled nonplanar porphyrin (pyridine)[5,10,15,20-tetra(tert-butyl)porphyrinato]zinc(II)
Mathias O. Senge, Tadashi Ema, Kevin M. Smith
Journal of the Chemical Society, Chemical Communications ( 7 ) 733 - 734 1995年
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Ruffling in a Series of Nickel(II) meso-Tetrasubstituted Porphyrins as a Model for the Conserved Ruffling of the Heme of Cytochromes c
W. Jentzen, M. C. Simpson, J. D. Hobbs, X. Song, J. A. Shelnutt, T. Ema, N. Y. Nelson, C. J. Medforth, K. M. Smith, M. Veyrat, M. Mazzanti, R. Ramasseul, J. C. Marchon, T. Takeuchi, W. A. Goddard
Journal of the American Chemical Society 117 ( 45 ) 11085 - 11097 1995年
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Complexation-induced Catalysis in Zinc Insertion into Cationic Porphyrin 査読
Mizutani, T, Koyama, H, Ema, T, Nomura, A, Yoshida, T, Ogoshi, H
Chem. Lett. ( 10 ) 941 - 942 1995年
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5,10,15,20‐Tetra‐tert‐butylporphyrin and Its Remarkable Reactivity in the 5‐ and 15‐Positions
Tadashi Ema, Mathias O. Senge, Nora Y. Nelson, Hisanobu Ogoshi, Kevin M. Smith
Angewandte Chemie International Edition in English 33 ( 18 ) 1879 - 1881 1994年9月
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Mechanism of Induced Circular Dichroism of Amino Acid Ester-Porphyrin Supramolecular Systems. Implications to the Origin of the Circular Dichroism of Hemoprotein
Tadashi Mizutani, Tadashi Ema, Takashi Yoshida, Thomas Renné, Hisanobu Ogoshi
Inorganic Chemistry 33 ( 16 ) 3558 - 3566 1994年8月
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Design and Synthesis of a Trifunctional Chiral Porphyrin with C<inf>2</inf> Symmetry as a Chiral Recognition Host for Amino Acid Esters
Tadashi Mizutani, Tadashi Ema, Takashi Tomita, Yasuhisa Kuroda, Hisanobu Ogoshi
Journal of the American Chemical Society 116 ( 10 ) 4240 - 4250 1994年5月
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Recognition of α-Amino Acid Esters by Zinc Porphyrin Derivatives via Coordination and Hydrogen Bonding Interactions. Evidence for Two-Point Fixation from Thermodynamic and Induced Circular Dichroism Spectroscopic Studies
Tadashi Mizutani, Tadashi Ema, Takashi Yoshida, Yasuhisa Kuroda, Hisanobu Ogoshi
Inorganic Chemistry 32 ( 10 ) 2072 - 2077 1993年
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Recognition of chirality and residual groups of amino acid esters using new trifunctional chiral porphyrins with C<inf>2</inf> symmetry
Tadashi Mizutani, Tadashi Ema, Takashi Tomita, Yasuhisa Kuroda, Hisanobu Ogoshi
Journal of the Chemical Society, Chemical Communications ( 6 ) 520 - 522 1993年
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Synthesis and Photoreaction of 1,2,3,4-Tetra-t-butylnaphthalene: A Highly Crowded Naphthalene Derivative and Its Valenceisomers
Sadao Miki, Tadashi Ema, Rie Shimizu, Hiroshi Nakatsuji, Zen ichi Yoshida
Tetrahedron Letters 33 ( 12 ) 1619 - 1620 1992年3月
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Selective syntheses of unsymmetrical meso-arylporphyrins
Tadashi Ema, Yasuhisa Kuroda, Hisanobu Ogoshi
Tetrahedron Letters 32 ( 35 ) 4529 - 4532 1991年