Studies on Pyrimidine Derivatives. XLII. Reactivity of 4-Methyl Group of 2, 4-Dimethylthieno [2, 3-d] pyrimidine
نویسندگان
چکیده
منابع مشابه
Synthesis and Biological Evaluation of 4-hydroxychromenyl arylmethyl-6-hydroxy pyrimidine-2, 4-dione Derivatives
Background: An efficient, promoted tri-component catalytic reaction between barbituric acid (or N,N-dimethyl barbituric acid), 4-hydroxy coumarin, and a wide range of aryl aldehydes using zinc oxide nanowires (ZnO NWs) to obtain some new 4-hydroxychromenylarylmethyl-6-hydroxypyrimidine-2,4-diones is described. Method: The reactants were successfully condensed ...
متن کامل2-Methylsulfanyl-4-(3-pyridyl)pyrimidine
In the title compound, C(10)H(9)N(3)S, the dihedral angle between the aromatic rings is 8.09 (14)°. In the crystal, a C-H⋯N interaction links the molecules, forming chains.
متن کامل4-Hydrazino-2-(methylsulfanyl)pyrimidine
In the crystal of the title compound, C(5)H(8)N(4), centrosymmetric dimers are linked by pairs of N-H⋯N hydrogen bonds. Further N-H⋯N links result in a two-dimensional array whereby wave-like supra-molecular chains are inter-connected by R(2) (2)(8) ring motifs.
متن کاملEthyl 5-methyl-4-oxo-3-phenyl-2-propylamino-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate
The title compound, C(19)H(21)N(3)O(3)S, was synthesized via the aza-Wittig reaction of functionalized imino-phospho-rane with phenyl isocyanate under mild conditions. In the mol-ecule, the fused thienopyrimidine ring system is essentially planar, with a maximum deviation of 0.072 (2) Å, and makes a dihedral angle of 60.11 (9)° with the phenyl ring. An intra-molecular C-H⋯O hydrogen bond is pre...
متن کاملEthyl 2-isopropylamino-5-methyl-4-oxo-3-phenyl-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate
The title compound, C(19)H(21)N(3)O(3)S, was synthesized via an aza-Wittig reaction of a functionalized imino-phospho-rane with phenyl isocyanate under mild conditions. In the mol-ecule, the fused thienopyrimidine ring system makes a dihedral angle of 66.30 (11)° with the phenyl ring. An intra-molecular C-H⋯O hydrogen bond occurs. The terminal -OCH(2)CH(3) group is disordered over two sites wit...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1989
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.109.9_642