Rearrangement of 2??Acyl??2??Chloro??1, 3??Cyclohexanediones into 2??Acylresorcinols and 2??Acyl??4??Chloro??1, 3??Cyclohexanediones

…, D Seynaeve, N De Kimpe, R Verhe…

Index: De Buyck, L.; Seynaeve, D.; De Kimpe, N.; Verhe, R.; Schamp, N. Bulletin des Societes Chimiques Belges, 1985 , vol. 94, # 5 p. 363 - 370

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Citation Number: 8

Abstract

Abstract 2-Acetylresorcinol was prepared in 80–881 yield from 2-acetyl-1, 3- cyclohexanedione by 2-chlorination (excess of NCS in boiling carbon tetrachloride or one equivalent of molecular chlorine in the cold solvent) followed by aromatization in a heated dry solution of hydrogen chloride in dimethylformamide. The scope of the method was extended to the preparation of 2-propionyl-and 2-isobutyrylresorcinol (resp. 791 and 661 ...