Enantioselective Construction of Cyclobutanes: A New and Concise Approach to the Total Synthesis of (+)-Piperarborenine B

Jiang Lin Hu, Liang Wen Feng, Lijia Wang, Zuowei Xie, Yong Tang, Xiaoge Li

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

A highly diastereoselective and enantioselective Cu(II)/SaBOX-catalyzed [2 + 2] cycloaddition of methylidenemalonate and multisubstituted alkenes was developed to furnish optically active cyclobutanes in high yields with >99/1 dr and up to >99% ee. By application of the newly developed method, the total synthesis of (+)-piperarborenine B was completed in eight steps from methylidenemalonate and olefin in 17% overall yield with >99/1 dr and 99% ee.

Original languageEnglish
Pages (from-to)13151-13154
Number of pages4
JournalJournal of the American Chemical Society
Volume138
Issue number40
DOIs
StatePublished - 12 Oct 2016
Externally publishedYes

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