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Room temperature stable 3-lithiothiophene: a facile synthesis of 3-functional thiophenes

✍ Scribed by Xiaoming Wu; Tian-An Chen; Lishan Zhu; Reuben D. Rieke

Book ID
104214293
Publisher
Elsevier Science
Year
1994
Tongue
French
Weight
167 KB
Volume
35
Category
Article
ISSN
0040-4039

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✦ Synopsis

Abrtmcl: 3-Functionalizcd tbiopbcncs were readily prepnrcd by reacting elcotrophilca with 3-litiothiiophtnt at room temper&we. 3-Litbiotbiopbene was found to be stable in bexane at room temperature.

Poly(3-substituted thiophenes) are highly conducting polymers with good sohrbilhy, stability, and processabiity.'

The precursors, especially 3-functionalized thiophenes, are fascinatingly attmctive. Although

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The reaction of 3-(benzothiazol-2-yl)-3oxopropanenitrile 1 with active methylene reagents 2a-d and sulfur afforded polysubstituted thiophenes 3a-c . The synthetic potential of the b-enaminonitrile moiety in 3a was explored. The reaction of 3a with active methylene reagents 2a-e afforded thieno [2,3b