Synlett 2017; 28(09): 1096-1100
DOI: 10.1055/s-0036-1558952
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© Georg Thieme Verlag Stuttgart · New York

Catalytic Enantioselective Aza-Piancatelli Rearrangement

Amol B. Gade
a   Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
b   Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India   Email: n.patil@ncl.res.in
,
Nitin T. Patil*
a   Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
b   Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India   Email: n.patil@ncl.res.in
› Author Affiliations
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Publication History

Received: 01 December 2016

Accepted after revision: 20 January 2017

Publication Date:
13 February 2017 (online)


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Abstract

The design and development of an enantioselective aza-­Piancatelli rearrangement reaction are described. In the presence of a chiral phosphoric acid catalyst, furylcarbinols react with anilines to ­afford highly functionalized cyclopentenones with excellent diastereo- and enantioselectivities. The process was shown to be scalable, and up to 1 gram of starting material could be employed under mild reaction conditions.

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