Studies on Pyrazolo [3, 4-d] pyrimidine Derivatives. I. On the Reactions of 1-Methyl-and 1-Phenyl-1H-pyrazolo-[3, 4-d] pyrimidine with Grignard Reagent
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منابع مشابه
7-Chloro-5-(2-ethoxyphenyl)-1-methyl-3-propyl-2,6-dihydro-1H-pyrazolo[4,3-d]pyrimidine
In the title compound, C(17)H(21)ClN(4)O, the benzene ring is oriented at dihedral angles of 1.59 (3) and 1.27 (3)° with respect to the pyrimidine and pyrazole rings, while the dihedral angle between the pyrimidine and pyrazole rings is 0.83 (3)°. An intra-molecular N-H⋯O hydrogen bond results in the formation of a planar (r.m.s. deviation 0.004 Å) six-membered ring.
متن کامل5-Butylamino-6-(4-fluorophenyl)-7-oxo-1-p-tolyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carbonitrile
In the title compound, C(23)H(21)FN(6)O, the dihedral angle between the fluoro-phenyl and pyrimidinone rings is 75.9 (1)°, and the dihedral angle between the methyl-phenyl and pyrazole rings is 40.3 (1)°. In the crystal structure, weak C-H⋯π(arene) and C-N⋯π(arene) inter-actions and intermolecular C-H⋯N and N-H⋯O hydrogen-bonding inter-actions are present.
متن کاملPyrazolo 1 5a pyrimidine pdf
Aminopyrazolo1, 5-apyrimidines 13 and not the regioisomeric compounds 14.Structures of pyrazolo1, 5-apyrimidines, imidazo1, 2apyrimidines, and pyrimido1, 2-abenzimidazoles, a c, respectively. Helvetica Chimica Acta Vol.triazolo1, 5-c pyrimidine moiety were reported to exhibit remarkable. Also, the tricyclic heterocyclic pyrazolo1, 5-c-1, 2, 4-triazolo4, 3-epyrimidines 2. nzic.org.nzChemProcesse...
متن کاملCorrection to: Synthesis, characterization and in vitro antimicrobial activity of novel fused pyrazolo[3,4-c]pyridazine, pyrazolo[3,4-d]pyrimidine, thieno[3,2-c] pyrazole and pyrazolo[3′,4′:4,5]thieno[2,3-d]pyrimidine derivatives
After the publication of this work [1] it was noticed that on page 3 of the article beginning in the paragraph-'Hydrazide 14 is used as a key producer…' the compound-"Not ethyl-N'-5-amino-1,3-diphenyl-1H-thieno[3,2-c]pyrazole-6-carbonylformohydrazonate" should be deleted. Also on page 10 of the PDF beginning in paragraph-'Synthesis of 5-amino-…' the compound-"Not ethyl-N'-5-amino-1,3-diphenyl-1...
متن کاملSynthesis, characterization and in vitro antimicrobial activity of novel fused pyrazolo[3,4-c]pyridazine, pyrazolo[3,4-d]pyrimidine, thieno[3,2-c]pyrazole and pyrazolo[3′,4′:4,5]thieno[2,3-d]pyrimidine derivatives
BACKGROUND Some novel substituted pyrazolone, pyrazolo[3,4-c]pyridazine, pyrazolo[3,4-d]pyrimidine, pyrazolo[3,4-d]thiazolo[3,2-a]pyrimidinone, thieno[3,2-c]pyrazole and pyrazolo[3',4':4,5]thieno[2,3-d]pyrimidine derivatives have been reported to possess various pharmacological activities like antimicrobial, antitumor and anti-inflammatory. RESULTS A novel series of azoles and azines were des...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1974
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.94.6_666