Switching reaction pathways of trifluoromethylated thiobenzanilides by choice of different oxidative systems
摘要:
Trifluoromethylated thiobenzanilides are efficiently converted to 2-trifluoromethylbenzothiazoles via intramolecular oxidative cyclization under CAN/NaHCO(3) oxidation, while the dimerized products with "-S-S-" bond linkage are obtained when PIDA is used as an oxidant. (C) 2011 Elsevier B.V. All rights reserved.
An efficient one-pot method for the synthesis of 2-trifluoromethylbenzothiazoles by the treatment of trifluoromethylimidoyl chlorides with sodium hydrosulfide hydrate using PdCl(2) as the sole catalyst in DMSO is described. The reaction proceeds via thiolation/C H bond functionalization/C S bond formation in moderate to high yields with good functional group tolerance.
SAWHNEY S. N; SINGH J.; BANSAL O. P., J. INDIAN CHEM. SOC. <JICS-AH>, 1974, 51, NO 10, 886-890
作者:SAWHNEY S. N、 SINGH J.、 BANSAL O. P.
DOI:——
日期:——
Sawhney,S.N. et al., Journal of the Indian Chemical Society, 1974, vol. 51, p. 886 - 890
作者:Sawhney,S.N. et al.
DOI:——
日期:——
Switching reaction pathways of trifluoromethylated thiobenzanilides by choice of different oxidative systems
Trifluoromethylated thiobenzanilides are efficiently converted to 2-trifluoromethylbenzothiazoles via intramolecular oxidative cyclization under CAN/NaHCO(3) oxidation, while the dimerized products with "-S-S-" bond linkage are obtained when PIDA is used as an oxidant. (C) 2011 Elsevier B.V. All rights reserved.