Synlett 2017; 28(19): 2517-2524
DOI: 10.1055/s-0036-1590979
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© Georg Thieme Verlag Stuttgart · New York

New Strategy for Forging Contiguous Quaternary Carbon Centers via H2O2-Mediated Ring Contraction

Jiadong Hu
a   Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, P. R. of China   Email: xiewq@nwafu.edu.cn
,
Xin Yu
b   Instrumental Analysis and Research Center, Shanghai University, Shanghai 200444, P. R. of China
,
a   Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, P. R. of China   Email: xiewq@nwafu.edu.cn
c   Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, P. R. of China
› Author Affiliations
We are grateful for financial support from the National Natural Science Foundation of China (grants. 21722206, 21672171, 21372239), the Scientific Research Foundation of Northwest A&F University (grants. Z111021501, Z109021600). Financial support from the Open Fund of State Key Laboratory of Bioorganic & Natural Products is also acknowledged.
Further Information

Publication History

Received: 25 July 2017

Accepted after revision: 24 August 2017

Publication Date:
12 September 2017 (online)


Abstract

Stereospecific construction of contiguous quaternary carbon centers constitutes a major challenge in natural product synthesis. A general protocol that enables stereospecific construction of all stereoisomers of such a moiety remains elusive. In this article, we will discuss the oxidative ring contraction of all-substituted cyclic α-formyl ketones mediated by H2O2, which provides a facile access to the stereospecific construction of contiguous quaternary carbon centers.