发明授权
US4450309A Process for the preparation of unsaturated geminal dihalogen compounds 失效
制备不饱和偕二卤化合物的方法

Process for the preparation of unsaturated geminal dihalogen compounds
摘要:
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.
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