A process for preparing bicyclic aromatic sulfonyl chlorides of the formula
wherein, n is 1 or 2;
A is -O- or -CH₂-; and
B is -O-, -CH₂-, or -NCH₃-;
provided at least one of A or B is -O-,
which comprises reacting a compound of the formula
with a Villsmeier reagent of the formula
The bicyclic aromatic sulfonyl chlorides produced by the process can be used to prepare pharmaceutically useful sulfonylureas.
一种制备式中双环芳基
磺酰氯的工艺 其中,n 为 1 或 2;A 为 -O- 或 -CH₂-;B 为 -O-、-CH₂- 或 -NCH₃-;条件是 A 或 B 中至少有一个为 -O-,该工艺包括使式中化合物与式中的 Villsmeier 试剂反应 由该工艺制得的双环芳基
磺酰氯可用于制备药用磺
脲类。