Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1996-05-03
1997-10-28
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
544122, 544180, 544217, 544295, 544296, 544319, 544320, 544321, 544326, 544328, 544329, 544333, 544335, C07D23902, C07D41304, C07D40304
Patent
active
056819579
ABSTRACT:
Unsubstituted or substituted 2-fluoro-pyrimidines can be prepared by reaction of the underlying 2-amino-pyrimidines with diazotization agents, mixtures of HF and H.sub.2 O containing 30-70% by weight of HF, based on the total of HF and H.sub.2 O, serving as reaction medium. The reaction medium can also contain diluents and/or inorganic salts, preferably fluorides.
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Chemical Abstracts, vol. 83, abstract No. 131545t, p. 504, (1975).
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Derwent Abstracts, abstract of JP 03-193,766, (1991).
Krchnak et al., Diazotisation of the Amino Group on the Pyrimidine Nucleus, Collection Czechoslov. Chem. Commun., vol. 40, pp. 1390-1395 1975.
Klausener Alexander
Steffan Guido
Wolters Erich
Bayer Aktiengesellschaft
Coleman Brenda
Shah Mukund J.
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