作者:Jack E Baldwin、Andrew M Fryer、Mark R Spyvee、Roger C Whitehead、Mark E Wood
DOI:10.1016/0040-4039(96)01522-5
日期:1996.9
A stereoselective synthesis of acromelic acid analogues is described in which the cis-relative stereochemistry is established by a hydroxyl directed heterogeneous catalytic hydrogenation of an enamide.
Towards a versatile synthesis of kainoids III: Efficient methods for control of C-4 stereochemistry
作者:Jack E. Baldwin、Andrew M. Fryer、Mark R. Spyvee、Roger C. Whitehead、Mark E. Wood
DOI:10.1016/s0040-4020(97)00192-0
日期:1997.4
Halo- and silenolactonisation methods were used to prepare benzylic lactones from enamide carboxylic acids. The lactones were subsequently cleaved with predominantly inversion of configuration at the benzylic centre to give protected acromelic analogues with the correct C-4 stereochemistry. Hydroxyl directed heterogeneous hydrogenation of related enamide carbinols gave total stereocontrol at C-4. (C) 1997 Elsevier Science Ltd.