Chloromethyl group substituted heterocyclic compounds of the formulae ##STR1## wherein X is O or S; Y together with the two carbons to which Y is attached forms phenyl, pyridyl or pyrimidyl, each of which may be substituted by R; R is one of iodo or trifluoromethylthio or one or two of fluoro, chloro, bromo, (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxy, (C.sub.1 -C.sub.4)alkylthio, (C.sub.1 -C.sub.4)alkylsulfinyl, (C.sub.1 -C.sub.4)alkylsulfonyl or trifluoromethyl; and R.sup.1 is hydrogen or R, are prepared by reacting a bifunctional compound of the formulae ##STR2## with a 2-chloro-1,1,1-tri(C.sub.1 -C.sub.6)alkoxyethane. Most of the compounds of formulae I and II are novel. These compounds are intermediates of use in the preparation of compounds having pharmaceutical activity. The 2-chloro-1,1,1-tri(C.sub.1 -C.sub.6)alkoxyethanes are prepared from the corresponding tri(C.sub.1 -C.sub.6)alkoxyethanes by chlorination with N-chlorosuccinimide or with chlorine in pyridine and a chlorohydrocarbon cosolvent.
式为##STR1##的
氯甲基取代的
杂环化合物,其中X为O或S; Y与Y附着的两个碳形成苯基、
吡啶基或
嘧啶基,每个基团都可以被R取代; R为
碘或三
氟甲
硫基或一到两个
氟、
氯、
溴、(C.sub.1-C.sub.4)烷基、(C.sub.1-C.sub.4)烷氧基、(C.sub.1-C.sub.4)烷
硫基、(C.sub.1-C.sub.4)烷基亚砜基、(C.sub.1-C.sub.4)烷基磺酰基或三
氟甲基之一; R.sup.1为氢或R,通过将式为##STR2##的双官能团化合物与2-
氯-1,1,1-三(C.sub.1-C.sub.6)烷氧基
乙烷反应制备而成。大多数I和II式化合物是新的。这些化合物是制备具有药物活性的化合物的中间体。2-
氯-1,1,1-三(C.sub.1-C.sub.6)烷氧基
乙烷是通过使用N-
氯代琥珀
酰亚胺或在
吡啶和
氯代烃共溶剂中使用
氯气进行
氯化制备的。