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612. Pyrimidine reactions. Part IV. The methylation of 2,4- and 4,5-diaminopyrimidine and related compounds

โœ Scribed by Brown, D. J. ;Jacobsen, N. W.


Book ID
120061595
Publisher
The Royal Society of Chemistry
Year
1962
Weight
813 KB
Category
Article
ISSN
0368-1769

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Synthesis of 5-amino-4,5-dihydropyrazolo
โœ A. Maqestiau; J.-J. Vanden Eynde ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 432 KB

Abstrat -Treatment of ethyl (heteroalkylidene)aminopyrazole-4-carboxylates with hydrazine hydrate generally provides a ready synthetic route to 5-amino-4,5-dihydropyrazolo [3.4-d] pyrimidin-4-ones, although ethyl 5-[(dimethylamino)alkylidene]aminopyrazole-4-carboxylates are unreactive. On the other