Tetrahedron Letters p. 9191 - 9192 (1998)
Update date:2022-07-31
Topics:
Ong, Chi Wi
Chen, Chong Ming
Wang, Long Fu
Shieh, Po Chuen
Reaction of 1,6-dioxo-2,4-diene with P2S5 and Lawesson's reagent affords the 2,5-disubstituted thiophene. This reaction can take place regioselectively in the presence of BF3-etherate catalysis, useful for the synthesis of
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