This work was supported by Grants-in-Aid for Creative Scientific Research (grant no. 16GS0209) from the Ministry of Education, Culture, Sports, Science, and Technology (Japan) and The Asahi Glass Foundation.
9-Stannafluorenes: 1,4-Dimetal Equivalents for Aromatic Annulation by Double Cross-Coupling†
Article first published online: 8 SEP 2009
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 48, Issue 41, pages 7573–7576, September 28, 2009
How to Cite
Nagao, I., Shimizu, M. and Hiyama, T. (2009), 9-Stannafluorenes: 1,4-Dimetal Equivalents for Aromatic Annulation by Double Cross-Coupling. Angew. Chem. Int. Ed., 48: 7573–7576. doi: 10.1002/anie.200903779
- Issue published online: 23 SEP 2009
- Article first published online: 8 SEP 2009
- Manuscript Received: 10 JUL 2009
- Ministry of Education, Culture, Sports, Science, and Technology (Japan)
- The Asahi Glass Foundation
- synthetic methods
Double or nothing! A straightforward and high-yielding approach to a variety of polycyclic aromatic hydrocarbons has been achieved through palladium-catalyzed annulation of 9,9-dimethyl-9-stannafluorenes and dithienostannole with 1,2-dihaloarenes (see scheme). In addition, 1,1-dibromo-1-alkenes can also be applied to this annulation to produce dibenzofulvenes in excellent yields.