N-(2,2,2-Trichloro-1-hydroxyethyl)- and N-(2,2-dichloro-1-hydroxy-2-phenylethyl)arenesulfonamides are oxidized with chromium(VI) oxide to give, respectively, N-(arylsulfonyl)trichloroacetamides and N-(aryl sulfonyl)dichloro(phenyl)acetamides. Under analogous conditions N-(2,2,2-trichloro-1-hydroxyethyl)trifluoromethanesulfonamide is converted into 1,1,1-trichloro-2,2-bis(trifluoromethylsulfonylamino)ethane.
New approach to the preparation of p-(1-cyanoethyl)arenesulfonamides by reaction of arylsulfonyl imines of polychloroacetaldehydes with acetone cyanohydrin
作者:A. R. Kaliev、V. Yu. Serykh、I. B. Rosentsveig
DOI:10.1134/s1070428017080061
日期:2017.8
Reaction of N-(2,2,2-trichloroethylidene)- or N-(1-phenyl-2,2-dichloroethylidene)arenesulfonamides with acetonecyanohydrin in acetone in the presence of potassium carbonate led to the formation of N- (2,2,2-trichloro-1-cyanoethyl)- or N-(2-phenyl-2,2-dichloro-1-cyanoethyl)arenesulfonamides.
Synthesis of 2-phenylquinoxaline from α-substituted N-(2-dichloro-2-phenylethyl)arenesulfonamides and o-phenylenediamine
作者:G. N. Rozentsveig、I. B. Rozentsveig、A. N. Mirskova、G. G. Levkovskaya
DOI:10.1134/s1070428006030225
日期:2006.3
Reduction of N-(polychloroethylidene)- and N-(1-hydroxypolychloroethyl) arenesulfonamides with adamantane in the presence of superacids
作者:G. N. Rozentsveig、A. V. Popov、I. B. Rozentsveig、G. G. Levkovskaya
DOI:10.1134/s1070428011040087
日期:2011.4
N-(2,2,2-Trichloroethylidene)-, N-(2,2-dichloro-2-phenylethylidene)-, and N-(1-hydroxy-2-polychloroethyl) arenesulfonamides reacted with adamantane in carbon tetrachloride in the presence of oleum or concd. H2SO4-P4O10 mixture to give the corresponding N-(2-polychloroethyl)arenesulfonamides as a result of reduc-tion of the azomethine and OH group, respectively.
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作者:T.I. Drozdova、A.N. Mirskova
DOI:10.1023/a:1012347516916
日期:——
In reaction of N,N-dichloro-4-chlorobenzene- and N,N-dichloro-4-methylbenzenesulfonamides with phenylacetylene were obtained in good yield N-(2-benzene-2,2-dichloroethylidene)arenesulfonamides. The latter undergo nucleophilic addition of water, ethanol, and arenesulfonamides.
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作者:G. N. Rozentsveig、I. B. Rozentsveig、G. G. Levkovskaya、I. T. Evstaf'eva、A. N. Mirskova
DOI:10.1023/a:1013135722293
日期:——
Benzene, toluene, and 2-chlorothiophene regioselectively react with N-(2,2-dichloro-2-phenylethylidene)arenesulfonamides in the presence of oleum to give N-[1-aryl(or hetaryl)-2,2-dichloro-2-phenylethyl]arenesulfonamides. Analogous C-amidoalkylation products are formed by the action of N-(2,2-dichloro-1-hydroxy-2-phenylethyl)- and N-(1-arylsulfonylamino-2,2-dichloro-2-phenylethyl)arenesulfonamides on toluene and 2-chlorothiophene in concentrated sulfuric acid.