Synthetic Communications p. 1607 - 1610 (1999)
Update date:2022-08-11
Topics:
Hoffmann, Kenneth J.
Carlsen, Per H. J.
Bromination in concentrated solutions of substituted thiophenes in acetic acid with NBS at room temperature was studied. Under the conditions, bromination readily took place with high regioselectivity at the 2-ring positions, > 99%. The developed method was demonstrated to be suitable for multimolar preparations.
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