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A convenient and improved synthesis of dithieno[3,2-b:2′,3′-d]thiophene

✍ Scribed by Fredrik Allared; Jonas Hellberg; Tommi Remonen

Book ID: 104250433
Publisher: Elsevier Science
Year: 2002
Tongue: French
Weight: 52 KB
Volume: 43
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(02)00006-0

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✦ Synopsis

An improved synthesis of dithieno[3,2-b:2%,3%-d]thiophene 1 is presented. By starting from 2,3-dibromothiophene 2 the total yield was improved from 35 to 58%. We also describe a more convenient synthesis of one of the reagents, benzenesulfonic acid thioanhydride 3.

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