作者:Pier Giovanni Baraldi、Achille Barco、Simonetta Benetti、Gian Piero Pollini、Eleonora Polo、Daniele Simoni
DOI:10.1021/jo00201a005
日期:1985.1
Hajos–Parrish ketone: approaches toward C-ring precursors of 7-deoxytaxol
作者:Marja Lajunen、Ari Koskinen
DOI:10.1039/a909471g
日期:——
Two routes were evaluated for the preparation of multiply functionalized cyclohexane derivatives in a stereocontrolled fashion from readily available HajosâParrish ketone 1. Reduction (catalytic or dissolving metal) led to the cis-isomer 8, in stark contrast to previous literature. Finally, modification of earlier steroid chemistry allowed the synthesis of the trans-isomer 14. The latter is a useful intermediate for the synthesis of 7-deoxytaxol derivatives.