Synthesis 2013; 45(9): 1160-1164
DOI: 10.1055/s-0033-1338297
practical synthetic procedures
© Georg Thieme Verlag Stuttgart · New York

Modular Access to 9,9-Spirobifluorenes by Oxidative Coupling Using Molybdenum Pentachloride

Simon Trosien
Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10–14, 55128 Mainz, Germany   Fax: +49(6131)3926777   Email: waldvogel@uni-mainz.de
,
Dieter Schollmeyer
Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10–14, 55128 Mainz, Germany   Fax: +49(6131)3926777   Email: waldvogel@uni-mainz.de
,
Siegfried R. Waldvogel*
Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10–14, 55128 Mainz, Germany   Fax: +49(6131)3926777   Email: waldvogel@uni-mainz.de
› Author Affiliations
Further Information

Publication History

Received: 07 March 2013

Accepted: 11 March 2013

Publication Date:
21 March 2013 (online)


Abstract

The strong oxidizing agent molybdenum pentachloride was used for an efficient direct C–C bond formation of 9,9-diarylfluorenes to the corresponding 9,9-spirobifluorenes. Thus, a versatile method that is compatible with labile groups, such as iodo moieties, was established. By this approach important building blocks for light emitting polymers were synthesized in high yields.

Supporting Information