A new method was developed for the synthesis of fluorine-containing functionally substituted vinyl sulfides and ketene dithioacetals from the corresponding derivatives of a-trifluoromethyl-substituted CH-acids and thiols in the presence of BF(3) . NEt(3).
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作者:A. N. Kovregin、A. Yu. Sizov、A. F. Ermolov
DOI:10.1023/a:1019669820268
日期:——
alpha-Fluorine-containing beta-functionalized vinyl sulfides readily react with N-nucleophiles to form alpha-fluorine-substituted products. The reactions with phenylhydrazines and amidines of acids are accompanied by cyclization at the functional group. Thermal cyclization of cyanotrifluoromethylketene N,S-acetals proceeds at the trifluoromethyl group to give substituted 3-cyanoquinolin-4-ones.
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作者:A. N. Kovregin、A. Yu. Sizov、A. F. Ermolov
DOI:10.1023/a:1024781929253
日期:——
A new method was developed for the synthesis of methoxycarbonyltrifluoromethylthioketene by thermal cleavage of tert-butyl 1,3,3,3-tetrafluoro-2-methoxycarbonylpropenyl sulfide in the presence Of P2O5. This thioketene was demonstrated to exhibit high reactivity in reactions with nucleophiles as well as in ene and diene syntheses.
Dehydrohalogenation of fluorinated sulfenyl chlorides. synthesis and properties of perfluoroisobutylene sulfide