Nakamura Group

103. Photo Addition of Silyl Ketene Acetal to Fullerene. Synthesis of α-Fullerene-Substituted Carboxylic Esters, H. Tokuyama, H. Isobe, and E. Nakamura, J. Chem. Soc., Chem. Commun., 2753-2754 (1994).

102. Sonochemical Initiation of Radical Chain Reactions. Hydrostannation and Hydroxystannation of C-C Multiple Bonds, E. Nakamura, Y. Imanishi, and D. Machii, J. Org. Chem., 59, 8178-8179 (1994).

101. Fullerene-Oligonucleotide Conjugates. Photoinduced Sequence-Specific DNA Cleavage, A. S. Boutorine, H. Tokuyama, M. Takasugi, H. Isobe, E. Nakamura, and C. Hėlėne, Angew. Chem. Int. Ed. Engl., 33, 2462-2465 (1994).

100. Theoretical Studies of Nucleophilic Additions of Monomeric and Dimeric Organometallics, M. Nakamura, E. Nakamura, N. Koga, and K. Morokuma, J. Chem. Soc., Faraday Trans., 29, 1789-1798 (1994).

99. Hydrostannation of Cyclopropene. Strain-Driven Radical Addition Reaction, S. Yamago, S. Ejiri, and E. Nakamura, Chem. Lett., 1889-1892 (1994).

98. Tertiary Phosphines and P-Chiral Phosphinites Bearing Fullerene Substituent, S. Yamago, M. Yanagawa, and E. Nakamura, J. Chem. Soc., Chem. Commun., 2093-2094 (1994).

97. Structure of (22R)-22-Methylchola-4,23-dien-3b-ol tert-Butyldimethylsilyl Ether, A. Uchida, Y. Ohashi, M. Arai, and E. Nakamura, Acta Cryst., C50, 259-260 (1994).

96. Synthetic Chemistry with Fullerenes. Photooxygenation of Olefins, H. Tokuyama and E. Nakamura, J. Org. Chem., 59, 1135-1138 (1994).

95. Synthesis and [2 + 2] Cycloaddition of Dimethyleneketene Acetals. Reaction with C₆₀ and Facile Hydrolysis of the C=C Bond Connected to C₆₀, S. Yamago, A. Takeichi, and E. Nakamura, J. Am. Chem. Soc., 116, 1123-1124 (1994).

94. Theoretical Studies on the Reaction of Solvated Methyllithium Open Dimer with Aldehyde, M. Nakamura, E. Nakamura, N. Koga, and K. Morokuma, J. Am. Chem. Soc., 115, 11016-11017 (1993).

93. Chemical Derivatization of Organofullerenes through Oxidation, Reduction, C-O and C-C Bond Forming Reactions. S. Yamago, H. Tokuyama, E. Nakamura, M. Plato, and F. Wudl, J. Org. Chem., 58, 4796-4798 (1993).

92. Regioselective Generation and Stereoselective [1 + 2] Cycloaddition of Substituted Vinylcarbenes, H. Tokuyama, T. Yamada, and E. Nakamura, Synlett, 589-591 (1993).

91. 1,2-Asymmetric Induction in the S_N2′-Allylation of Organocopper and Organozinc Reagents, M. Arai, T. Kawasuji, and E. Nakamura, J. Org. Chem., 58, 5121-5129 (1993).

90. [1 + 2] and [3 + 2] Cycloaddition Reactions of Vinylcarbenes with C₆₀, H. Tokuyama, M. Nakamura, and E. Nakamura, Tetrahedron Lett., 34, 7429-7432 (1993).

89. Photo-induced Biochemical Activity of Fullerene Carboxylic Acid, H. Tokuyama, S. Yamago, E. Nakamura, T. Shiraki, and Y. Sugiura, J. Am. Chem. Soc., 115, 7918-7919 (1993).

88. Ligand Control in the Stereoselective Allylzincation of Cyclopropenes, K. Kubota, M. Nakamura, M. Isaka, and E. Nakamura, J. Am. Chem. Soc., 115, 5867-5868 (1993).

87. A Single Electron Transfer Pathway in the [3 + 2] Cycloaddition of Dipolar Trimethylenemethane with Olefins, S. Yamago, S. Ejiri, M. Nakamura, and E. Nakamura, J. Am. Chem. Soc., 115, 5344-5345 (1993).

86. Acyclic Stereocontrol in Fischer Carbene Chemistry by syn-Selective Michael Addition/Trapping Sequence, E.Nakamura, K. Tanaka,T. Fujimura, S. Aoki, and P. G. Williard, J. Am. Chem. Soc., 115, 9015-9020 (1993).

85. S_N2′-Regio- and Diastereoselective Allylation of Organozinc Reagents, M. Arai, T. Kawasuji, and E. Nakamura, Chem. Lett., 357-360 (1993).

84. A New Class of Proteinase Inhibitor. Cyclopropenone-Containing Inhibitor of Papain, R. Ando, Y. Morinaka, H. Tokuyama, M. Isaka, and E. Nakamura, J. Am. Chem. Soc., 115, 1174-1175 (1993).

83. Sonochemical and Triethylborane-induced Tin Deuteride Reduction for the Highly Stereoselective Synthesis of (2’R)-[2′-2H]-2′-Deoxyribonucleosides from 2′-Functionalized Ribonucleosides, E. Kawashima, Y. Aoyama, T. Sekine, E. Nakamura, M. Kainosho, Y. Kyogoku, and Y. Ishido, Tetrahedron Lett., 34, 1317-1320 (1993).

81. [3 + 2] and [4 + 2] Cycloadditions of C₆₀, T. Suzuki, H. Foroudian, Q. Li, K. Khemani, F. Wudl, J. Leonetti, R. D. Little, T. White, B. Rickborn, S. Yamago, and E. Nakamura, J. Am. Chem. Soc., 115, 1594-1595 (1993).

82. Theoretical Studies on Carbometalation of Cyclopropene. Transition Structures of Addition of Me^–, MeLi, MeCu, and MeCu₂^–, and Origin of High Reactivity of Strained Double Bond, E. Nakamura, M. Nakamura, Y. Miyachi, N. Koga, and K. Morokuma, J. Am. Chem. Soc., 115, 99-106 (1993).

80. 1,2-Asymmetric Induction in the Sn-H Bond Insertion Reaction of Aliphatic Fischer Carbene Complex, E. Nakamura, K. Tanaka, and S. Aoki, J. Am. Chem. Soc., 114, 9715-9716 (1992).

79. Regio- and endo-Stereoselective [3 + 2] Cycloaddition of Trimethylenemethane to Electron-Deficient Olefin, S. Ejiri, S. Yamago, and E. Nakamura, J. Am. Chem. Soc., 114, 8707-8708 (1992).

78. Carbometalation of Cyclopropenes. Stereoselective Synthesis of Divinyl Ketone Acetals by 1,5-Hydrogen Migration Reaction of Vinylcyclopropanes, E. Nakamura, K. Kubota, and M. Isaka, J. Org. Chem., 57, 5809-5810 (1992).

77. Copper-Catalyzed Reactions of Organotitanium Reagents. Highly Selective S_N2′-Allylation and Conjugate Addition, M. Arai, B. H. Lipshutz, and E. Nakamura, Tetrahedron, Symposium in Print, 48, 5709-5718 (1992).

76. Theoretical Studies of Heteroatom-Directed Carbometalation. Addition of MeCu, Me₂Cu^– and MeLi to Substituted Acetylenes, E. Nakamura, Y. Miyachi, N. Koga, and K. Morokuma, J. Am. Chem. Soc., 114, 6686-6692 (1992).

75. Synthesis and Biological Activities of Cyclopropenone Antibiotic Penitricin and Congeners, H. Tokuyama, M. Isaka, E. Nakamura, R. Ando, and Y. Morinaka, J. Antibiotics, 45, 1148-2254 (1992).

74. Chlorosilane-Mediated 1,2-Addition of Organocuprates to α,β-Unsaturated Aldehydes. A Case of Vinylogous Cram’s Rule, M. Arai, T. Nemoto, Y. Ohashi, and E. Nakamura, Synlett, 309-310 (1992).

73. Thermal Reactions of Substituted Cyclopropenone Acetals. Regio- and Stereochemistry of Vinylcarbene Formation and Low-Temperature [3 + 2] Cycloaddition, H. Tokuyama, M. Isaka, and E. Nakamura, J. Am. Chem. Soc., 114, 5523-5530 (1992).

72. A Protective Strategy in Carbene Complex Chemistry. Synthesis of Functionalized Fischer Carbene Complexes via Dianion Formation, S. Aoki, T. Fujimura, and E. Nakamura, J. Am. Chem. Soc., 114, 2985-2990 (1992).

71. General Synthesis of Cyclopropenones and Their Acetals, M. Isaka, S. Ejiri, and E. Nakamura, Tetrahedron, Symposium in Print, 48, 2045-2057 (1992).

70. Aerobic Conversion of Organic Halides to Alcohols. An Oxygenative Radical Cyclization, E. Nakamura, T. Inubushi, S. Aoki, and D. Machii, J. Am. Chem. Soc., 113, 8980-8982 (1991).

69. Copper-Catalyzed Reactions of Organotitanium Reagents. Highly S_N2′-, Anti-, Diastereo-, and Chemoselective Alkylation of Allylic Chlorides and Phosphates, M. Arai, E. Nakamura, and B. H. Lipshutz, J. Org. Chem., 56, 5489-5491 (1991).

68. Structure of ±-(2S,1’S)-2-(Hydroxyphenylmethyl)-2-methylcyclohexanone C₁₄H₁₈O₂, E. Nakamura, I. Kuwajima, and P. G. Williard, Acta Cryst., C47, 984-985 (1991).

67. Synthesis of 1,4-Dicarbonyl Compounds and 4-Keto Pimelates by Palladium-Catalyzed Carbonylation of Siloxycyclopropanes, S. Aoki and E. Nakamura, Tetrahedron, 47, 3935-3946 (1991).

66. Reversible Generation of Trimethylenemethanes by Mild Thermolysis of Dialkoxy Methylenecyclopropanes, E. Nakamura, S. Yamago, S. Ejiri, A. E. Dorigo, and K. Morokuma, J. Am. Chem. Soc., 113, 3183-3184 (1991).

65. One-Pot Synthesis of Substituted Cyclopropenone Ketals via Alkylation of 3,3-Dialkoxy-2-sodiocyclopropenes, M. Isaka, R. Ando, Y. Morinaka, and E. Nakamura, Tetrahedron Lett., 32, 1339-1342 (1991).

64. Synthesis of 1,4-Keto Esters, and 1,4-Diketones via Palladium-Catalyzed Acylation of Siloxycyclopropanes. Synthetic and Mechanistic Studies, T. Fujimura, S. Aoki, and E. Nakamura, J. Org. Chem., 56, 2810-2821 (1991).

63. Simple Diastereoselectivity of the Aldol Reaction of Persubstituted Enolates. Stereoselective Construction of Quaternary Centers, S. Yamago, D. Machii, and E. Nakamura, J. Org. Chem., 56, 2098-2106 (1991).

62. Synthesis of 1,4-Dicarbonyl Compounds by Palladium-Catalyzed Cabonylative Arylation of Siloxycycloproanes, S. Aoki and E. Nakamura, Synlett, 741-742 (1990).

61. Thermal Hetero [3 + 2] Cycloaddition Approach to Functionalized Tetrahydrofurans, S. Yamago and E. Nakamura, J. Org. Chem., 55, 5553-5555 (1990).

60. Carbocupration of Cyclopropene. Asymmetric Synthesis of Quaternary Carbon Centers, M. Isaka and E. Nakamura, J. Am. Chem. Soc., 112, 7428-7430 (1990).