申请人:Chinoin Gyogyszer es Vegyeszeti Termekek Gyar Rt.
公开号:US04450309A1
公开(公告)日:1984-05-22
The invention relates to a new process for preparing unsaturated geminal dihalogen compounds. More particularly, the invention concerns a process for preparing compounds of the formula (I) ##STR1## wherein X is halogen, R.sup.1 is a straight or branched chained alkenyl group having 2 to 6 carbon atoms, by clearing the corresponding 1-substituted 2,2,2-trihaloethylesters.
本发明涉及一种制备不饱和双卤代化合物的新工艺。更具体地,本发明涉及一种通过清除相应的1-取代的2,2,2-三卤乙酸酯,制备式(I)化合物的工艺,其中X为卤素,R1为具有2至6个碳原子的直链或支链烯基基团。