Synlett 2015; 26(12): 1665-1670
DOI: 10.1055/s-0034-1380722
letter
© Georg Thieme Verlag Stuttgart · New York

A Facile Stereoselective Domino Approach for the Construction of Novel Bis(spiropiperidone)–Tetrahydrothiophene Hybrid Heterocycles

Chelliah Bharkavi
,
Sundaravel Vivek Kumar
,
Subbu Perumal*
Further Information

Publication History

Received: 13 January 2015

Accepted after revision: 09 April 2015

Publication Date:
21 May 2015 (online)


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Abstract

A library of novel bis-spiropiperidone–tetrahydrothiophene hybrid heterocycles have been synthesized via pseudo-three-component domino reaction of (3E,5E)-3,5-bis(arylidene)-1-methyl/benzyl piperidin-4-ones and 1,4-dithiane-2,5-diol in the presence of triethylamine. This transformation presumably proceeds via two annulations each involving the generation of 2-mercaptoacetaldehyde from 1,4-dithiane-2,5-diol–Michael addition–intramolecular aldol sequence which result in the creation of four new bonds in a one-pot operation. The advantages of this protocol are high atom economy, high stereoselectivity, short reaction time, and operational simplicity.