Unstable dialkylcarbamoyl lithiums, generated from the reaction of lithium dialkylamides with carbon monoxide, were successfully trapped by sulfur compounds (elemental sulfur, disulfides, carbondisulfide, and carbonylsulfide) at low temperature, through their potent affinity with a sulfur atom. These efficient reactions were also applied to development of a facile synthetic method for thiocarbamates
The thiocarbamoylation of internal alkynes to produce tetrasubstituted β-aminocarbonyl vinyl sulfides was demonstrated using a nickel catalyst. This reaction was successful with a wide variety of substituents, and gave the syn-adducts exclusively.
AlCl3-promoted thiolation of acyl C-H bonds with arylsulfonyl hydrazides was developed, which represents an effective synthesis of S-aryl thiocarbamates via C-S bond formation reaction. (C) 2015 Elsevier Ltd. All rights reserved.
QUEEN A.; LEMIRE A. E.; FANZEN A. F.; PADDON-ROW M. N., CAN. J. CHEM., 1978, 56, NO 22, 2884-2888,
作者:QUEEN A.、 LEMIRE A. E.、 FANZEN A. F.、 PADDON-ROW M. N.