Steric control of the epoxidation of 1-hydroxymethyl-3-cyclopentene using aryl or silyl hydroxyl protecting groups.
作者:Luigi Agrofoglio、Roger Condom、Roger Guedj
DOI:10.1016/s0040-4039(00)61128-0
日期:1992.9
A good -stereoselectivity is observed in the epoxidation of 1-hydroxymethyl-3-cyclopentene using tert-butyldimethylsilyl chloride as an hydroxyl protecting group (ratio anti:syn 8.2:1).
Synthesis of Three New Carbocyclic Analogues of 3′-Deoxy Purine Ribonucleosides
作者:Luigi Agrofoglio、Roger Condom、Roger Guedj、S. Richard Challand、John Selway
DOI:10.1080/15257779408011885
日期:1994.6
The 1-hydroxymethyl-3-cyclopentene (4) was converted, after epoxidation, to two new exocyclic amino carbocyclic nucleosides (1, 2), and a new cyclopentane nucleoside analogue (3), with potential biological activities. The regioselectivity of the epoxidation (4), which is the key step, is governed by steric control using aryl and silyl hydroxyl protecting groups.