ntyl)-, and 1-(4,5-dihydroxy-2-oxapentyl)-2-trifluoromethyl- and -2-trifluoromethylthiobenzimidazoles were obtained by condensation of trimethylsilyl derivatives of 2-substituted benzimidazoles with alkylating agents in the presence of SnCl4, or by direct alkylation of the sodium salts of the heterocycles.
1-(2,3-二羟基丙基)-,1-(
4-羟基-2-氧杂丁基)-,1-(3-羟基甲基-
4-羟基-2-氧杂丁基)-,1-(1,5-二羟基- 3-氧杂-2-戊基)-,1-(5-羟基-3-氧杂-2-戊基)-和1-(4,5-二羟基-2-氧杂戊基)-2-三
氟甲基-和-2-在SnCl4存在下,将2-取代的
苯并咪唑的三甲基甲
硅烷基衍
生物与烷基化剂缩合,或将杂环的钠盐直接烷基化,即可得到三
氟甲基
硫代
苯并咪唑。