Synthesis 2016; 48(08): 1131-1138
DOI: 10.1055/s-0035-1560412
paper
Georg Thieme Verlag Stuttgart · New York

Asymmetric Synthesis of Spiro Tetrahydrothiophene-indan-1,3-diones via a Squaramide-Catalyzed Sulfa-Michael/Aldol Domino Reaction

Suruchi Mahajan
a   Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany   Email: enders@rwth-aachen.de
,
Pankaj Chauhan
a   Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany   Email: enders@rwth-aachen.de
,
Marcus Blümel
a   Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany   Email: enders@rwth-aachen.de
,
Rakesh Puttreddy
b   Department of Chemistry, Nanoscience Center, University of Jyvaskyla, 40014 JYU, Finland
,
Kari Rissanen
b   Department of Chemistry, Nanoscience Center, University of Jyvaskyla, 40014 JYU, Finland
,
Gerhard Raabe
a   Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany   Email: enders@rwth-aachen.de
,
Dieter Enders*
a   Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany   Email: enders@rwth-aachen.de
› Author Affiliations
Further Information

Publication History

Received: 01 February 2016

Accepted after revision: 02 February 2016

Publication Date:
15 February 2016 (online)


Abstract

A new asymmetric domino sulfa-Michael/aldol reaction of 2-arylidene-1,3-indandiones with 1,4-dithiane-2,5-diol catalyzed by a sub-mol% loading of a squaramide provides a direct access to tetrahydrothiophene bearing spiro indane-1,3-dione derivatives in excellent yields and good stereoselectivities.

Supporting Information