申请人:ELF ATOCHEM S.A.
公开号:EP0409689A2
公开(公告)日:1991-01-23
An addition compound of 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol with a moderately electron donating compound such as a hydroxylated substance, an ether, a ketone, a carboxylic acid, a sulphoxide and a nitrogenated derivative.
A process based on the selectivity of formation of these addition compounds to make pure 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol.
Preferred electron donating compound is dimethyl sulphoxide.
一种 1,1-双(4-氯苯基)-2,2,2-三氯乙醇与中等电子捐赠化合物(如羟化物质、醚、酮、羧酸、亚砜和氮化衍生物)的加成化合物。
根据这些加成化合物形成的选择性来制造纯的 1,1-双(4-氯苯基)-2,2,2-三氯乙醇的工艺。
首选的电子捐赠化合物是二甲基亚砜。