A new method for the preparation of polyfluoroalkanedithiocarboxylates
摘要:
A new method for synthesis of alkyl and aryl polyfluoroalkyldithiocarboxylates by reaction of 1,1-dichloropolyfluoroalkylsulfenylchlorides with mercaptans in the presence of ZnCl2 was developed. The sulfenylchlorides are easily obtained by chlorination of benzyl 1,1dihydropolyfluoroalkylsulfides or benzyl dithioacetals of polyfluoroaldehydes. (c) 2005 Elsevier B.V. All rights reserved.
Polyfluoroalkyldithiocarboxylates react with dimethylacetylenedicarboxylate (DMAD) to give 2-polyfluoroalkyl-1,3-dithioles and/or 2-polyfluoroalkylidene-1,3-dithioles depending on the substituent at the thiolic sulfur atom and on the length of the polyfluoroalkyl chain. Amides of polyfluoroalkylthioncarboxylic acids with DMAD give 2-methoxy-2-polyfluoroalkyl-5-methoxycarbonylmethylene-thiazolidin-4-ones
A new method for the preparation of polyfluoroalkanedithiocarboxylates
作者:Vadim M. Timoshenko、Alexander V. Tkachenko、Yuriy G. Shermolovich
DOI:10.1016/j.jfluchem.2004.12.011
日期:2005.3
A new method for synthesis of alkyl and aryl polyfluoroalkyldithiocarboxylates by reaction of 1,1-dichloropolyfluoroalkylsulfenylchlorides with mercaptans in the presence of ZnCl2 was developed. The sulfenylchlorides are easily obtained by chlorination of benzyl 1,1dihydropolyfluoroalkylsulfides or benzyl dithioacetals of polyfluoroaldehydes. (c) 2005 Elsevier B.V. All rights reserved.