INTERMOLECULAR POLAR [4-PI(+)+2-PI]-CYCLOADDITIONS OF CATIONIC 2-AZABUTADIENES FROM THIOMETHYLAMINES - A NEW AND EFFICIENT METHOD FOR THE REGIOSELECTIVE AND DIASTEREOSELECTIVE SYNTHESIS OF 1,2,3,4-TETRAHYDROQUINOLINES
Substituted 1,2,3,4-tetrahydroquinolines and related condensed nitrogen-heterocycles are formed highly regio- and diastereo-selectively with yields ranging from 57 to 100% by intermolecular polar [4 pi(+) + 2 pi] cycloadditions of cationic 2-azabutadienes from thiomethylamines and various dienophiles.
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Indian Inst Chem Technol, Div Organ Chem, Biotransformat Lab, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Biotransformat Lab, Hyderabad 500007, Andhra Pradesh, India
Kamal, Ahmed
Prasad, B. Rajendra
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Indian Inst Chem Technol, Div Organ Chem, Biotransformat Lab, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Biotransformat Lab, Hyderabad 500007, Andhra Pradesh, India
Prasad, B. Rajendra
Khan, M. Naseer A.
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Indian Inst Chem Technol, Div Organ Chem, Biotransformat Lab, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Biotransformat Lab, Hyderabad 500007, Andhra Pradesh, India
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Kitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, Japan
Kitasato Univ, Sch Pharm, Med Res Labs, Tokyo 1088641, JapanKitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, Japan
Itoh, Kennosuke
Nagao, Shun-ichi
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Kitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, JapanKitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, Japan
Nagao, Shun-ichi
Tokunaga, Ken
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Kogakuin Univ, Ctr Promot Higher Educ, Div Liberal Arts, Tokyo 1920015, JapanKitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, Japan
Tokunaga, Ken
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Hirayama, Shigeto
Karaki, Fumika
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Kitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, Japan
Kitasato Univ, Sch Pharm, Med Res Labs, Tokyo 1088641, JapanKitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, Japan
Karaki, Fumika
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Mizuguchi, Takaaki
Nagai, Kenichiro
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Kitasato Univ, Sch Pharm, Med Res Labs, Tokyo 1088641, JapanKitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, Japan
Nagai, Kenichiro
Sato, Noriko
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Kitasato Univ, Sch Pharm, Med Res Labs, Tokyo 1088641, JapanKitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, Japan
Sato, Noriko
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Suzuki, Mitsuaki
Hashimoto, Masashi
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Josai Univ, Fac Sci, Dept Chem, Saitama 3500295, JapanKitasato Univ, Sch Pharm, Lab Med Chem, Tokyo 1088641, Japan