G. Gopalakrishnan et al., FACILE SYNTHESIS OF PIVALOPHENONES BY AN ULTRASOUND ASSISTED IODINE CATALYZED FRIEDEL-CRAFTS ACYLATION REACTION, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 35(11), 1996, pp. 1197-1198
The use of ultrasound in the acylation reactions of various aromatics
and heterocyclics with pivaloyl chloride in the presence of catalytic
amount of iodine, without any added solvent and at room temperature, g
ives excellent yields of the respective pivalophenones in a short reac
tion time.