Lactones. IX. Reactions of Highly Conjugated Butenolides under Friedel-Crafts Conditions. Synthesis of Polynuclear and Aryl-substituted Butadiene Carboxylic Acids1 …
R Filler, HA Leipold
文献索引：Filler,R.; Leipold,H.A. Journal of Organic Chemistry, 1962 , vol. 27, p. 4440 - 4443
The conversion of y-lactones to naphthalene derivatives has been described by a number of investigator^.^-^ We have recently reported8 the facile isomerization of cr-benzylidene-y- phenyl-APry-butenolide (Ia) to 4-phenyl-2-naphthoic acid (IIa) by anhydrous aluminum chloride in benzene solvent. It was proposed that intramolecular alkylation proceeds via electrophilic attack at the ortho position of the arylidene ring by a resonancestabilized ...
