Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2005-02-22
2005-02-22
Stockton, Laura L. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
06858737
ABSTRACT:
A method of obtaining a high purity 2-cyanoimino-1,3-thiazolidine, at a high yield, by cyclization reaction of dimethyl N-cyanoiminodithiocarbonate ester with 2-aminoethane thiol or the salt thereof in the presence of an alkali metal hydroxide is disclosed.
REFERENCES:
patent: 5574165 (1996-11-01), Lantzsch
patent: 5591859 (1997-01-01), Thalhammer
patent: 48-91064 (1973-11-01), None
patent: WO 9217462 (1992-10-01), None
J. Zmitek et al, “The Synthesis and Reactions of N-Cyano-O-Methylpseudoureas” pp. 721-728 Organic Preparations and Procedures Inc. vol. 23 (6) 1991.
Roberto Toso et al, “New Synthesis of 2-Cyano-1-Methyl-3-{2-{[ 5-Methyl-1H-Imidazol-4-YL)Methyl ] Thio}Ethyl }Guanidine (Cimetidine)” Gazzetta Chimica Italiana, pp. 345-350,vol. 110, 1980.
R. Neidlein et al, “ Reaktionsverhalten von N-Cyanimido-dithiokohlensaureester und 2, 2-Bismethylmercapto-1-cyanacrylnitril” Arch. Pharm. pp. 731-737 vol. 305 (10) (1972).
International Search Report dated Jan. 28, 2003.
Ishii Kenichi
Mita Shinya
Murotani Masahiro
Nippon Carbide Kogyo Kabushiki Kaisha
Rader & Fishman & Grauer, PLLC
Stockton Laura L.
LandOfFree
Process for producing 2-cyanoimino-1,3-thiazolidine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing 2-cyanoimino-1,3-thiazolidine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing 2-cyanoimino-1,3-thiazolidine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3464751