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Org Lett. 2016 Oct 21;18(20):5388-5391. doi: 10.1021/acs.orglett.6b02767. Epub 2016 Oct 05.

Total Synthesis of Aquatolide: Wolff Ring Contraction and Late-Stage Nozaki-Hiyama-Kishi Medium-Ring Formation.

Organic letters

Bin Wang, Yuanzhen Xie, Qin Yang, Guozhu Zhang, Zhenhua Gu

Affiliations

  1. Department of Chemistry, University of Science and Technology of China , 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China.
  2. State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, P. R. China.

PMID: 27701860 DOI: 10.1021/acs.orglett.6b02767

Abstract

A total synthesis of the highly strained natural product aquatolide has been achieved. The synthesis featured a photoinduced Wolff ring contraction reaction for the construction of bicyclo[2.1.1]hexane from diazo compound with a bicyclo[2.2.1]heptane skeleton. The eight-membered enone was built by a late-stage intramolecular Nozaki-Hiyama-Kishi vinylation reaction of steric bulky vinyl iodide and aldehyde.

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