Diastereoselective Synthesis of Protected 1,3-Diols by Catalytic Diol Relocation
摘要:
A complementary diastereoselective gold(I) or bismuth(III) catalyzed tandem hemiacetalization/dehydrative cyclization of 1,5-monoallylic diols was developed to access 1,3-dioxolanes and dioxanes. This methodology provides rapid access to protected 1,3-diols under mild conditions with high levels of diastereoselectivity.
Diastereoselective Synthesis of Protected 1,3-Diols by Catalytic Diol Relocation
作者:Justin A. Goodwin、Carl F. Ballesteros、Aaron Aponick
DOI:10.1021/acs.orglett.5b02725
日期:2015.11.20
A complementary diastereoselective gold(I) or bismuth(III) catalyzed tandem hemiacetalization/dehydrative cyclization of 1,5-monoallylic diols was developed to access 1,3-dioxolanes and dioxanes. This methodology provides rapid access to protected 1,3-diols under mild conditions with high levels of diastereoselectivity.
A simple method to polyhydroxylated olefinic molecules using ring-closing olefin metathesis
作者:Sukbok Chang、Robert H. Grubbs
DOI:10.1016/s0040-4039(97)01031-9
日期:1997.7
This paper describes the ring-closing metathesis of silyl ether connected dienes using molybdenum and ruthenium alkylidene catalysts. The cyclizations proceed to afford the corresponding cyclic silyloxy olefins in good to excellent yields. Subsequent oxidative ring cleavage yields highly functionalized olefins.