Open Access
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

Authors

  • 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
Further Information

Publication History

Received: 01 February 2016

Accepted after revision: 02 February 2016

Publication Date:
15 February 2016 (online)


Graphical Abstract

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