Tandem Three‐Component Synthesis of
<i>syn</i>
‐1,2‐ and
<i>syn</i>
‐1,3‐Diol Derivatives
作者:Keisuke Murata、Hiroya Takeshita、Keita Sakamoto、Haruhiko Fuwa
DOI:10.1002/asia.201901660
日期:2020.3.16
development of efficient methods for stereocontrolled synthesis of polyol derivatives has been of continuing interest for the synthetic community. We describe herein tandem olefin cross-metathesis/hemiacetalization/intramolecular oxa-Michael addition of allylic/homoallylic alcohols, α,β-unsaturated ketones, and aldehydes, which enabled the synthesis of syn-1,2- and syn-1,3-diol derivatives in a step-economical
对于多元醇衍生物的立体控制合成的有效方法的开发一直是合成界关注的焦点。我们在本文中描述了烯丙基/均烯丙基醇,α,β-不饱和酮和醛的串联烯烃交叉复分解/半缩醛化/分子内氧杂-Michael加成反应,从而能够合成syn-1,2-和syn-1,3-以分步经济的方式生产二醇衍生物。在随后的转化中,可以通过串联反应产物的乙缩醛部分的化学选择性/区域选择性裂解获得一系列差异保护的多元醇衍生物。