Synthetic Communications p. 100 - 112 (2011)
Update date:2022-08-05
Topics:
Yadav, Lal Dhar S.
Garima
Kapoor, Ritu
The first example of an efficient one-pot reductive sulfenylation and thiocyanation of carbonyl compounds in environmentally benign ionic liquid (IL) media is reported. The process involves reduction of carbonyl compounds with NaBH4 in the IL [bmim]BF4 followed by I2-catalyzed reaction of the resulting alcohols with aromatic/aliphatic thiols or ammonium thiocyanate in the same vessel to afford sulfides or thiocyanates, respectively, in excellent yields (78-93%). Notably, the protocol precludes the necessity to prepare and isolate the intermediate alcohols in a separate step as they are formed in situ, and the IL used can be recycled easily for further use without any loss of efficiency. Copyright
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(2011)