Selective ring-opening carbonylation of epoxy-steroids

被引：5
|
作者：
Balázs, A
Benedek, C
Szalontai, G
Torös, S
机构：
[1] Univ Veszprem, Dept Organ Chem, H-8201 Veszprem, Hungary
[2] Chem Inst Hungarian Customs & Finance Guard, H-2022 Hosok Fasora, Hungary
[3] Univ Veszprem, NMR Lab, H-8201 Veszprem, Hungary
来源：
STEROIDS | 2004年 / 69卷 / 04期
关键词：
epoxy-steroid; cobalt; homogeneous catalysis; alkoxycarbonylation; asymmetric ring-opening;
D O I：
10.1016/j.steroids.2004.02.003
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Ring-opening alkoxycarbonylation of epoxy-steroids has been carried out with a Co-2(CO)(8)/3-hydroxypyridine catalytic system. High chemo- and regioselectivities were obtained under the reaction conditions applied. Structural analysis of the products proved their high stereochemical purity in each case, accompanied by inversion of the original configuration. No carbonylation took place for sterically hindered steranic epoxides. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：271 / 277
页数：7
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