INTRAMOLECULAR ADDITION OF ARYL RADICALS TO VINYLOGOUS URETHANES - STUDIES TOWARD PREPARATION OF THE OXINDOLE PORTION OF GELSEMINE

被引：53

作者：

HART, DJ

WU, SC

机构：

[1] Department of Chemistry, The Ohio State University, Columbus, OH 43210

来源：

TETRAHEDRON LETTERS | 1991年 / 32卷 / 33期

关键词：

D O I：

10.1016/S0040-4039(00)79873-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Free radical cyclization of vinylogous urethanes 5 and 12 gave spiro oxindoles 6 and 13 + 14, in 95% and 84% yields, respectively. Cyclization of projected gelsemine intermediate 19 resulted in the formation of oxindole 22 via a cyclization, 1,4-hydrogen atom transfer, reduction sequence.

引用

页码：4099 / 4102

页数：4

共 13 条

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