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2,5-Bis-(butyltelluro) thiophene as a convenient precursor for the synthesis of 2,5-bis-(acetylenic) thiophenes

✍ Scribed by Gilson Zeni; Cristina W. Nogueira; Dagoberto O. Silva; Paulo H. Menezes; Antonio L. Braga; Hélio A. Stefani; João B.T. Rocha

Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
240 KB
Volume
44
Category
Article
ISSN
0040-4039

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✦ Synopsis

Both symmetrically and unsymmetrically substituted 2,5-bis-(acetylenic) thiophene derivatives were obtained in good yields under mild conditions through palladium-catalyzed cross coupling reaction of 2,5-bis-(butyltelluro) thiophene 2 and terminal alkynes. The methodology represents a general and efficient protocol for carrying out the synthesis of thiophene derivatives with potential biological activities.

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