Acta Chimica Sinica ›› 1987, Vol. 45 ›› Issue (3): 295-297. Previous Articles     Next Articles

Original Articles

β,β-二氯丁烯酮甲基上的反应

何森泉   

  1. 云南大学化学系
  • 发布日期:1987-03-15

Reactions occurring on the methyl group of \b\,b-dichlorobutenone

HE SENGQUAN   

  • Published:1987-03-15

1,1,5-Trichloropent-1-en-3-one (I), 1,1-dichloro-5-(diethylamino)pent-1-en-3-one hydrochloride and 1,1-dichloro-1,4-hexadien-3-one were prepared resp. by means of chloromethylation, Mannich reaction and aldol condensation of 4,4-dichlorobut-3-en-2-one. The chloromethylation product I reacted with triethylamine to give 1,1-dichloro-1,4-pentadien-3-one (II) in ether and 1,1-dichloro-5-ethoxypent-1-en-3-one in alcohol II polymd. easily at room temperature Reaction of I with ammonia in EtOH gave pyridinone III.

Key words: CONDENSATION REACTION, ETHER, CHLOROHYDROCARBON, ETHANOL P, MANNICH REACTION, PENTADIENE P, PYRIDINONE P, KETENE, BUTENONE P, HEXADIENE P

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