反应详情

Following the procedure stated in Referential example 1, reaction of 7.3 g of ethyl 4,4-diethoxyacetoacetate with 4.0 g of 3-methyl-2-butenyl chloride was carried out in the presence of sodium ethoxide and the resultant was decarboxylated with the alcoholic sodium hydroxide to yield 4.1 g of the desired product, b.p. 102°-103° C./ 1 mmHg.