Polyfunctional imidazoles: VI. Synthesis of 2-amino-1-aryl-4-chloro-1H-imidazole-5-carboxylic acids derivatives
作者:V. A. Chornous、A. N. Grozav、M. V. Vovk
DOI:10.1134/s1070428012050132
日期:2012.5
hydroxylamine and thionyl chloride were converted into 1-aryl-2,4-dichloroimidazole-5-carbonitriles which by the action of sodium azide and tin(II) chloride were transformed into 2-amino-1-aryl-4-chloroimidazole-5-carbonitriles. The consecutive reactions of 2-azido-1-aryl-4-chloro-5-formylimidazoles with N-bromosuccinimide, methanol, or amides led to the formation of methyl esters and amides of 2-a
Polyfunctional imidazoles: VII. 1-aryl-4-chloro-5-[hydroxy(halo)methyl]-1H-imidazoles and their derivatives
作者:V. A. Chornous、A. N. Grozav、D. V. Klyukovskii、A. V. Bezdudnyi、M. V. Vovk
DOI:10.1134/s1070428013040131
日期:2013.4
The reduction of 1-aryl-4-chloro-1H-imidazole-5-carbaldehydes with sodium tetrahydridoborate gave 1-aryl-4-chloro-1H-imidazol-5-ylmethanols which were converted into 5-chloromethyl and 5-fluoromethyl derivatives. 1-Aryl-4-chloro-5-chloromethyl-1H-imidazoles reacted with sodium azide, secondary amines, thiols, and triphenylphosphine to produce the corresponding products of chlorine replacement in the 5-chloromethyl group.