Synthesis 2016; 48(23): 4278-4294
DOI: 10.1055/s-0035-1561492
paper
© Georg Thieme Verlag Stuttgart · New York

One-Pot Synthesis and Intramolecular Cyclization of 5-(Prop-2-ynyl­sulfanyl)-1H-pyrrol-2-amines: A Simple Approach to 2,7-Dihydrothiopyrano[2,3-b]pyrrol-6-amines

Nina A. Nedolya*
A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, Favorsky Street 1, 664033 Irkutsk, Russian Federation   Email: nina@irioch.irk.ru   Email: boris_trofimov@irioch.irk.ru
,
Olga A. Tarasova
A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, Favorsky Street 1, 664033 Irkutsk, Russian Federation   Email: nina@irioch.irk.ru   Email: boris_trofimov@irioch.irk.ru
,
Alexander I. Albanov
A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, Favorsky Street 1, 664033 Irkutsk, Russian Federation   Email: nina@irioch.irk.ru   Email: boris_trofimov@irioch.irk.ru
,
Boris A. Trofimov*
A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, Favorsky Street 1, 664033 Irkutsk, Russian Federation   Email: nina@irioch.irk.ru   Email: boris_trofimov@irioch.irk.ru
› Author Affiliations
Further Information

Publication History

Received: 29 April 2016

Accepted after revision: 09 June 2016

Publication Date:
03 August 2016 (online)


Abstract

An expedient approach for the preparation of previously unknown­ 2,7-dihydrothiopyrano[2,3-b]pyrrol-6-amines from readily accessible­ starting materials (propargylamines, isothiocyanates, and propargyl bromide) has been developed. The methodology is based on the one-pot synthesis and thermally-induced fast rearrangement of 5-(prop-2-ynylsulfanyl)-1H-pyrrol-2-amines into 2,7-dihydrothiopyrano[2,3-b]pyrrol-6-amines.

Supporting Information