[미국특허]
Process for the preparation of 3,3,5-trichloroglutarimide
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07C-211/02
C07C-211/38
출원번호
US-0690722
(1996-07-31)
발명자
/ 주소
Adaway Timothy J. (Midland MI) Kershner Larry D. (Midland MI)
출원인 / 주소
DowElanco (Indianapolis IN 02)
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
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°C. and about 50°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-tet
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°C. and about 50°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°C. and about 100°C. to convert the 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one to 3,3,5-trichloroglutarimide.
대표청구항▼
A process for preparing 3,3,5-trichloroglutarimide, comprising: (a) combining 4-cyano-2,2,4-trichlorobutanoyl chloride with water in an inert organic solvent at a temperature between about 20°C. and about 50°C. to obtain a mixture of 3,3,5-trichloroglutarimide and 3,3,5,6-tetrachloro-5,6-dihydropyri
A process for preparing 3,3,5-trichloroglutarimide, comprising: (a) combining 4-cyano-2,2,4-trichlorobutanoyl chloride with water in an inert organic solvent at a temperature between about 20°C. and about 50°C. to obtain a mixture of 3,3,5-trichloroglutarimide and 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one; and (b) heating the 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one in the presence of water and inert organic solvent to between about 90°C. and about 100°C. to convert the 3,3,5,6-tetrachloro-5,6-dihydropyridin-2-one to 3,3,5-trichloroglutarimide.
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