Process for the preparation of 3,3,5-trichloroglutarimide

Details Process for the preparation of 3,3,5-trichloroglutarimide Process for the preparation of 3,3,5-trichloroglutarimide

1996-07-31

1997-11-18

Kumar, Shailendra

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546250, 546249, 546294, 546345, C07C21102, C07C21138

Patent

active

056889534

ABSTRACT:
3,3,5-Trichloroglutarimide is prepared by combining 4-cyano-2,2,4-trichlorobutanoyl chloride with water in an inert organic solvent at a temperature between about 20.degree. C. and about 50.degree. C. to obtain a mixture of 3,3,5-trichloroglutarimide and 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one. The 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one is then heated in the presence of water and inert organic solvent to between about 90.degree. C. and about 100.degree. C. to convert the 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one to 3,3,5-trichloroglutarimide.

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