Highly enantioselective catalytic dynamic resolution of N-Boc-2-lithiopiperidine: synthesis of (R)-(+)-N-Boc-pipecolic acid, (S)-(-)-coniine, (S)-(+)-pelletierine, (+)-beta-conhydrine, and (S)-(-)-ropivacaine and formal synthesis of (-)-lasubine II and (+)-cermizine C.

Highly enantioselective catalytic dynamic resolution of N-Boc-2-lithiopiperidine: synthesis of (R)-(+)-N-Boc-pipecolic acid, (S)-(-)-coniine, (S)-(+)-pelletierine, (+)-beta-conhydrine, and (S)-(-)-ropivacaine and formal synthesis of (-)-lasubine II and (+)-cermizine C.
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DOI:
10.1021/ja105772z
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发表时间:
2010-09-08
影响因子:
15
通讯作者:
Gawley, Robert E.
Gawley, Robert E.
中科院分区:
化学1区
文献类型:
--
作者:
Beng, Timothy K.;Gawley, Robert E.

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在TMEDA存在下,使用手性配体8或其非对映体9催化动态拆分(CDR)外消旋-2-锂-N-Boc-哌啶,导致使用广泛的亲电试剂高度对映选择性地合成2-取代哌啶的任一对映体。CDR已应用于R-或S-哌啶酸衍生物、(+)-β-conhydrine、(S)-(+)-pelletivine、(S)-(−)-罗哌卡因的合成,以及(−)-lasubine II和(+)-cermizine C的正式合成。
The catalytic dynamic resolution (CDR) of rac-2-lithio-N-Boc-piperidine using chiral ligand 8 or its diastereomer 9, in the presence of TMEDA has led to the highly enantioselective syntheses of either enantiomer of 2-substituted piperidines using a wide range of electrophiles. The CDR has been applied to the synthesis of R- or S-pipecolic acid derivatives, (+)-β-conhydrine, (S)-(+)-pelletierine, (S)-(−)-ropivacaine, and formal synthesis of (−)-lasubine II and (+)-cermizine C.
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