Benzazoles: II. Synthesis and arenesulfonylation of 1-methyl-1H-benzimidazol-2-amine
T. N. KaipnazarovResearch Institute of Natural Sciences, Karakalpak Division, Academy of Sciences of Uzbekistan Republic, Nukus, UzbekistanН. С. МухамедовYunusov Institute of Chemistry of Plant Substances, Academy of Sciences of Uzbekistan Republic, ul. M. Ulugbeka 77, Tashkent, 100170, UzbekistanR. Ya. OkmanovYunusov Institute of Chemistry of Plant Substances, Academy of Sciences of Uzbekistan Republic, ul. M. Ulugbeka 77, Tashkent, 100170, UzbekistanG. E. BerdimbetovaResearch Institute of Natural Sciences, Karakalpak Division, Academy of Sciences of Uzbekistan Republic, Nukus, UzbekistanF. B. ZhonkhozhaevaTashkent State Agrarian University, Tashkent, Uzbekistan
ABI
Abstract
The reaction of 1-methyl-1H-benzimidazol-2-amine with arenesulfonyl chlorides in the presence of triethylamine afforded 1-arenesulfonyl-3-methyl-2,3-dihydro-1H-benzimidazol-2-imines instead of expected N-(1-methyl-1H-benzimidazol 2-yl)arenesulfonamides.