Some chemical transformations of alkyl (4-aminophenyl)carbamates
摘要:
Azo coupling of diazonium salts derived from alkyl (4-aminophenyl)carbamates with ethyl alpha-methylacetoacetate gave ethyl 5-alkoxycarbonylamino-1H-indole-2-carboxylates. The condensation of aminophenylcarbamates with aromatic aldehydes in ethanol afforded the corresponding Schiff bases. Cyclohexyl {4-[(4-methoxyphenyl)methylidene]aminophenyl}carbamate reacted with chloroacetyl chloride in dioxane in the presence of triethylamine to produce cyclohexyl {4-[3-chloro-2-(4-methoxyphenyl)-4-oxoazetidin-1-yl]phenylcarbamate, and the reaction of benzyl {4-[(4-nitrophenyl)methylidene]aminophenyl}carbamate with sulfanylacetic acid in DMF led to the formation of benzyl {4-[2-(4-nitrophenyl)-4-oxo-1,3-thiazolidin-3-yl]-phenyl}carbamate.
Some chemical transformations of alkyl (4-aminophenyl)carbamates
摘要:
Azo coupling of diazonium salts derived from alkyl (4-aminophenyl)carbamates with ethyl alpha-methylacetoacetate gave ethyl 5-alkoxycarbonylamino-1H-indole-2-carboxylates. The condensation of aminophenylcarbamates with aromatic aldehydes in ethanol afforded the corresponding Schiff bases. Cyclohexyl {4-[(4-methoxyphenyl)methylidene]aminophenyl}carbamate reacted with chloroacetyl chloride in dioxane in the presence of triethylamine to produce cyclohexyl {4-[3-chloro-2-(4-methoxyphenyl)-4-oxoazetidin-1-yl]phenylcarbamate, and the reaction of benzyl {4-[(4-nitrophenyl)methylidene]aminophenyl}carbamate with sulfanylacetic acid in DMF led to the formation of benzyl {4-[2-(4-nitrophenyl)-4-oxo-1,3-thiazolidin-3-yl]-phenyl}carbamate.