Steric control in Pd-mediated cycloisomerization of sugar alkynols: documentation of a rare allylic epimerization

被引：11

作者：

Ramana, C. V. ^{[1
]}

Patel, Pitarnbar ^{[1
]}

Gonnade, Rajesh G. ^{[1
]}

机构：

[1] Natl Chem Lab, Pune 411008, Maharashtra, India

来源：

TETRAHEDRON LETTERS | 2007年 / 48卷 / 27期

关键词：

D O I：

10.1016/j.tetlet.2007.04.133

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Pd-mediated cycloisomerization of C3-alkynylated glucofuranosyl derivatives revealed a dominance of steric factors over electronic factors. However, the intermediate glycals were epimerized prior to the ketalization and afforded the more stable cis-fused bicyclic ketals. (c) 2007 Elsevier Ltd. All rights reserved.

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页码：4771 / 4774

页数：4

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