Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Reexamination Certificate
2006-01-03
2006-01-03
Wilson, James O. (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
C544S334000
Reexamination Certificate
active
06982331
ABSTRACT:
The invention provides a process for synthesizing chlorinated pyrimidines. The process includes reacting imidoyl chloride compounds with phosgene (COCl2). The imidoyl chloride compounds can be supplied as starting materials or can be produced by reacting organic amides with phosgene or reacting organic nitrites with hydrogen chloride. Phosgene may be replaced by equivalent reagents. The chlorinated pyrimidines, such as 4,6-dichloropyrimidine, can be used to synthesize other compounds useful in a variety of compositions, such as fungicides, pesticides, and pharmaceuticals.
REFERENCES:
patent: 4353830 (1982-10-01), Mark
patent: 4668788 (1987-05-01), Beitzke et al.
patent: 5145856 (1992-09-01), Clough et al.
patent: 5583226 (1996-12-01), Stucky et al.
patent: 5677453 (1997-10-01), Cramm et al.
patent: 5723612 (1998-03-01), Huber et al.
patent: 5750694 (1998-05-01), Jones et al.
patent: 6018045 (2000-01-01), Whitton et al.
patent: 6096892 (2000-08-01), Crombie et al.
patent: 6160117 (2000-12-01), Whitton et al.
patent: 6441171 (2002-08-01), Mais et al.
patent: 2287466 (1995-09-01), None
patent: 0 095 637 (1983-05-01), None
patent: 92/08703 (1992-05-01), None
patent: 95/29166 (1995-11-01), None
Pavlenko, N.G.; Kukhar, V.P. Inst. Org. Khim., “Cyclization of N,N-dimethyl-N-′-(dicyanovinyl)-C-chloroformamidines to pyrimidines.” Ukraniniskii Khimicheskii Zhurnal (Russian Ed.) (1992), 48(4), 395-9.
Glushkov, R.G.; Dronova, L.N.; Nikolaeva, L.A.; Medvedev, B.A.; Mashkovskii, M.D., “Synthesis and pharmacological activity of guanidine and 2-aminoimidazol-2-ine derivatives”. Khimiko-Farmatsevticheskii Zhurnal (1981), 15(6), 39-43, 15(6), p. 39-43.
Research Disclosure 39104 (1996), Anonymous.
Kenner et al., J. Chem. Soc., 574 (1943).
Hull, J. Chem. Soc., 2214 (1951).
Yanagida et al., J. Org. Chem. 34(10): 2972-2975 (1969).
Yanagida et al., J. Bull. Chem. Soc. (46):299-302 (1973).
Benke Alan H.
Doyle Timothy J.
Nady Louie A.
Rodriguez Gilbert
Wehrenberg Peter K.
Allen Rose M.
Syngenta Crop Protection Inc.
Ward Paul V
Wilson James O.
LandOfFree
Synthesis of chlorinated pyrimidines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synthesis of chlorinated pyrimidines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthesis of chlorinated pyrimidines will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3584269