Studies on Heterocyclic Compounds. XVIII. Synthesis of Furo [2, 3-d] pyridazine Derivatives. (6). Nitration of 4-Oxo-7-chloro-4, 5-dihydrofuro [2, 3-d] pyridazine
نویسندگان
چکیده
منابع مشابه
3-Chloro-6-[4-(2-pyridyl)piperazin-1-yl]pyridazine
In the title compound, C(13)H(14)ClN(5), the piperazine ring adopts a chair conformation and the dihedral angle between the aromatic rings is 13.91 (7)°. The crystal structure is stabilized by weak inter-molecular C-H⋯N hydrogen-bond inter-actions.
متن کاملEthyl 3-methyl-4-oxo-4,5-dihydro-1H-pyrrolo[2,3-d]pyridazine-2-carboxylate
The title compound, C(10)H(11)N(3)O(3), was synthesized by the reaction of 3,5-bis-(ethoxy-carbon-yl)-2-formyl-4-methyl-1H-pyrrole and hydrazine hydrate. The angle between the pyrrole ring and the pyridazinone ring is 0.93 (9)°. In the crystal, inter-molecular N-H⋯O and N-H⋯N hydrogen-bond inter-actions link the mol-ecules into a two-dimensional network.
متن کامل3-Chloro-6-[2-(propan-2-ylidene)hydrazinyl]pyridazine
In the title compound, C(7)H(9)ClN(4), the 3-chloro-6-hydrazinylpyridazine unit is planar (r.m.s. deviation = 0.0219 Å) and is oriented at a dihedral angle 4.66 (27)° with respect to the propan-2-yl-idene group. In the crystal, the mol-ecules are linked into non-planar dimers due to a crystallographic twofold rotation via N-H⋯N hydrogen bonds with R(2) (2)(8) graph-set ring motifs.
متن کامل3-Chloro-6-[2-(cyclopentylidene)hydrazin-1-yl]pyridazine
The asymmetric unit of the title compound, C(9)H(11)ClN(4), contains two virtually planar mol-ecules that differ in conformation about the bond connecting the hydrazine and pyridazine units. The 3-chloro-6-hydrazinylpyridazine and cyclo-pentane groups are oriented at dihedral angles of 4.5 (3) and 8.8 (4)° in the two mol-ecules. In the crystal, the mol-ecules form a one dimensional polymeric st...
متن کامل3-Chloro-6-[(E)-2-(1-phenylethylidene)hydrazinyl]pyridazine
Two independent mol-ecules are present in the asymmetric unit of the title compound, C(12)H(11)ClN(4), (Z' = 2): the dihedral angles between the phenyl and pyridizine rings are 8.35 (10) and 37.64 (6)°. In the crystal, the two mol-ecules form inversion dimers with R(2) (2)(8) ring motifs through inter-molecular N-H⋯N hydrogen bonds. The crystal structure is stabilized by π-π inter-actions betwe...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1972
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.20.936