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A facile synthesis of 3-aryl-substituted-benzothiophenes via a lewis acid mediated cyclization of 2-arylthio-acetophenones

✍ Scribed by Seongkon Kim; Jane Yang; Frank DiNinno

Book ID: 104261186
Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 191 KB
Volume: 40
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(99)00392-5

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✦ Synopsis

The boron trifluoride-etherate mediated cyclization of 2-arylthio-ketones la-h at ambient temperature gave 3-aryl-substituted benzothiophenes 2a-h in excellent yield. None of the rearranged 2-aryl-substituted benzothiophenes were observed.

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