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PROCESS FOR THE PREPARATION OF UNSATURATED ALPHA-CHLORINATED COMPOUNDS OF TWO ELECTROATTRACTIVE GROUPS IN THE BETA POSITION
PROCESS FOR THE PREPARATION OF UNSATURATED ALPHA-CHLORINATED COMPOUNDS OF TWO ELECTROATTRACTIVE GROUPS IN THE BETA POSITION
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机译:在Beta位置制备两个电吸引基的不饱和Alpha氯化化合物的过程
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摘要
Compounds of formula IMAGE (Ia) or IMAGE (Ib) in which n denotes an integer from 1 to 10 and X and Y, which are identical or different, each denote an electron-attracting group, are made by reacting a halogenating agent with a compound of formula IMAGE (IIa) or IMAGE (IIb) in which R, X and Y are as hereinbefore defined, anionized by a base.
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