Acylation and alkylation reactions. Part IV. The cyclisation of alkyl-substituted phenoxyacetyl chlorides to benzofuran-3(2H)-ones
作者:M. H. Palmer、N. M. Scollick
DOI:10.1039/j39680002833
日期:——
The interaction of 14 alkyl-substituted phenoxyacetyl chlorides with aluminium chloride in benzene gives the cyclic ketones as the dominant products. In the reactions of the 4-chloro-3-methyl and 3,4-dimethyl compounds the major cyclic product is the 5,6-disubstituted benzofuranone; the reactions with the 3,4-polymethylene derivatives give largely the linear isomer in the case of the tri, penta,- and
14种烷基取代的苯氧基乙酰氯与氯化铝在苯中的相互作用产生环状酮作为主要产物。在4-氯-3-甲基和3,4-二甲基化合物的反应中,主要的环状产物是5,6-二取代的苯并呋喃酮。与3,4-多亚甲基衍生物的反应在三,五,-和六亚甲基化合物的情况下主要得到线性异构体,而在四亚甲基化合物的情况下主要得到角异构体。