Catalytic action of azolium salts. III. Aroylation of N-phenylbenzimidoyl chlorides with aromatic aldehydes in the presence of 1,3-dimethylimidazolium iodide

DOI: 10.1248/cpb.40.2627

Source and publish data:

Chemical and Pharmaceutical Bulletin p. 2627 - 2631 (1992)

Update date:2022-08-10

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Authors:

Miyashita

Matsuda Matsuda

Higashino

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Article abstract of DOI:10.1248/cpb.40.2627

N-Phenylbenzimidoyl chlorides 10, 11, 12, 13, and 14 were aroylated with aromatic aldehydes 9 in the presence of a catalytic amount of 1,3-dimethylimidazolium iodide (1) to afford N-(α-aroylbenzylidene)anilines 15, 16, 17, 18, and 19. Treatment of the resulting N-(α-aroylbenzylidene)anilines (15-19) with diluted hydrochloric acid (HCl) produced the benzils 20, 21, 22, 23, and 24 in excellent yields.

Full text of DOI:10.1248/cpb.40.2627

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