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Synfacts 2008(12): 1280-1280  
DOI: 10.1055/s-0028-1087307
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Fusing Phosphole and Thiophene

Contributor(s): Timothy M. Swager, Jan M. Schnorr
Y. Matano*, T. Miyajima, T. Fukushima, H. Kaji, Y. Kimura, H. Imahori
Kyoto University, Japan
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Publication History

Publication Date:
20 November 2008 (online)

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Significance

The authors synthesized bithiophene-fused benzo[c]phospholes with different orientations of the thiophene moiety. After performing a Ti(II)-mediated cyclization of diynes 1-3 and addition of PhPCl2 a mixture of unreacted starting material and products 7-9 was obtained. Reacting this mixture with AuCl(SMe2) allowed the separation of the respective Au(I)-phosphole complex. The target compounds were then obtained by treatment with excess P(NMe2)3.