Proline catalyzed, one-pot three component Mannich reaction and sequential cyclization toward the synthesis of 2-substituted piperidine and pyrrolidine alkaloids
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作者:
Chacko, Shibin
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Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, IndiaIndian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India
Chacko, Shibin
[1
]
Ramapanicker, Ramesh
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Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, IndiaIndian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India
Ramapanicker, Ramesh
[1
]
机构:
[1] Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India
A very effective one-pot three component reaction of 4-bromobutanal or 5-bromopentanal, acetone, and p-anisidine catalyzed by proline is reported. A three component Mannich reaction followed by cyclization leading to the synthesis of 2-substituted pyrrolidine and piperidine derivatives through simultaneous formation of two C-N and one C-C bond is reported. The usefulness of the reaction is demonstrated by the synthesis of (+/-)coniine, (+/-)pelletrine, (+/-)sedridine, and (+/-)allosedridine. (C) 2015 Elsevier Ltd. All rights reserved.
机构:
Wright State Univ, Dept Chem, Dayton, OH 45435 USA
CW Post LIU, Dept Chem, Long Isl City, NY 11548 USAWright State Univ, Dept Chem, Dayton, OH 45435 USA
Arevalo-Garcia, Enzo B.
Colmenares, Juan Carlos Q.
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Univ So Calif, Loker Hydrocarbon Res Inst, Los Angeles, CA 90089 USAWright State Univ, Dept Chem, Dayton, OH 45435 USA
机构:
Wright State Univ, Dept Chem, Dayton, OH 45435 USA
CW Post LIU, Dept Chem, Long Isl City, NY 11548 USAWright State Univ, Dept Chem, Dayton, OH 45435 USA
Arevalo-Garcia, Enzo B.
Colmenares, Juan Carlos Q.
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Univ So Calif, Loker Hydrocarbon Res Inst, Los Angeles, CA 90089 USAWright State Univ, Dept Chem, Dayton, OH 45435 USA