Revision of the stereochemistry of the reductive Heck cyclisation of 1-(2-iodobenzoyl)-4-substituted-1.4-dihydro-pyridine-3-carbaldehyde aminals
作者:Pierre Mangeney、Christophe Pays
DOI:10.1016/s0040-4039(03)01384-4
日期:2003.7
The stereochemistry of reductive and non reductive Heck cyclisations of 4-substituted-1.4-dihydropyridines is reexamined. The both reactions occur mainly via an anti (from the C4 substituent) 5-exo process without any epimerisation of the C4-H.
重新检查4-取代-1.4-二氢吡啶的还原性和非还原性Heck环化的立体化学。的两个反应主要发生经由一个抗(来自C 4取代基)-5-外切过程不使用C的任何差向异构化4 -H。