Synthesis 2015; 47(24): 3972-3982
DOI: 10.1055/s-0035-1560187
paper
© Georg Thieme Verlag Stuttgart · New York

Preparation of a New Spirobi[thieno[2,3-c]pyran] and Its Selective Mono- and Dimetalation: Application for the Preparation of Soluble Conjugated Oligothiophenes and Pyrene Derivatives

Vasudevan Dhayalan
Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 Munich, Germany   Email: paul.knochel@cup.uni-muenchen.de
,
Fernando Rabasa Alcañiz
Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 Munich, Germany   Email: paul.knochel@cup.uni-muenchen.de
,
Veronika Werner
Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 Munich, Germany   Email: paul.knochel@cup.uni-muenchen.de
,
Konstantin Karaghiosoff
Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 Munich, Germany   Email: paul.knochel@cup.uni-muenchen.de
,
Paul Knochel*
Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 Munich, Germany   Email: paul.knochel@cup.uni-muenchen.de
› Author Affiliations
Further Information

Publication History

Received: 15 July 2015

Accepted after revision: 24 July 2015

Publication Date:
02 September 2015 (online)


Abstract

3-Thienylacetic acid was converted in six steps into a new spirobi[thieno[2,3-c]pyran] (overall yield: 52%). The spirobi[thieno[2,3-c]pyran] was selectively mono- or dimetalated with butyllithium and then transmetalated with zinc chloride; cross-coupling reaction with various aryl or heteroaryl bromides, including bromo-oligothiophenes, acid chlorides, and 1-bromopyrene, produced the corresponding spiro derivatives in high yields.

Supporting Information