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Dynamic kinetic resolution of racemic γ-aryl-δ-oxoesters.: Enantioselective synthesis of 3-arylpiperidines
被引:71
作者:
Amat, M
[1
]
Cantó, M
Llor, N
Escolano, C
Molins, E
Espinosa, E
Bosch, J
机构:
[1] Univ Barcelona, Fac Pharm, Organ Chem Lab, E-08028 Barcelona, Spain
[2] CSIC, Inst Ciencia Mat, Barcelona 08193, Spain
关键词:
D O I:
10.1021/jo025894f
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Cyclodehydration of racemic gamma-aryl-delta-oxoesters with (R)- or (S)-phenylglycinol stereoselectively affords bicyclic delta-lactams, in a process that involves a dynamic kinetic resolution. Subsequent reduction of these lactams leads to enantiopure 3-arylpiperidines. Starting from racemic aldehyde esters, this short sequence has been applied to the synthesis of (R)-3-phenylpiperidine and the antipsychotic drug (-)-3-PPP (an (S)-3-arylpiperidine), whereas starting from racemic ketone esters enantiopure cis-2-alkyl-3-arylpiperidines are prepared.
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页码:5343 / 5351
页数:9
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