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Synthesis of Tetraarylthiophenes by Regioselective Suzuki Cross-Coupling Reactions of Tetrabromothiophene.

✍ Scribed by Thanh Tuan Dang; Nasir Rasool; Thanh Tung Dang; Helmut Reinke; Peter Langer


Publisher
John Wiley and Sons
Year
2007
Weight
30 KB
Volume
38
Category
Article
ISSN
0931-7597

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## Abstract The Suzuki reaction of tetrabromothiophene with arylboronic acids provides a regioselective approach to various 5‐aryl‐2,3,4‐tribromothiophenes, symmetrical 2,5‐diaryl‐3,4‐dibromothiophenes, and tetraarylthiophenes. Unsymmetrical 2,5‐diaryl‐3,4‐dibromothiophenes are prepared by Suzuki r