Fused cyclic ether formations from bromo-diepoxides by AgOTf-promoted successive ring expansion reactions

被引：25

作者：

Hayashi, N ^{[1
]}

Fujiwara, K ^{[1
]}

Murai, A ^{[1
]}

机构：

[1] HOKKAIDO UNIV,GRAD SCH SCI,DIV CHEM,SAPPORO,HOKKAIDO 060,JAPAN

来源：

TETRAHEDRON LETTERS | 1996年 / 37卷 / 34期

关键词：

D O I：

10.1016/0040-4039(96)01340-8

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The one-pot successive ring expansion reactions of 1-bromo-9-tert-butyldiphenylsilyloxy-4,5,7,8-diepoxynonanes promoted by AgOTf were investigated. The syn-trans-derivative was treated with AgOTf in dry CH2Cl2 to give the cis-fused perhydrotriflyloxypyranopyran as the major product. On the other hand, the corresonding anti-trans-isomer was transformed into the cis-fused perhydrotrifyloxypyranofuran under the same conditions. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：6173 / 6176

页数：4

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