2,2,7,7-Tetramethyl-1,2,3,6,7,8-hexahydrocinnolino[5,4,3-cde]cinnoline
نویسندگان
چکیده
The asymmetric unit of the title compound, C(16)H(20)N(4), contains two half-mol-ecules, which are completed by crystallographic inversion symmetry. The pyridazine rings are conjugated and the cyclo-hexane rings adopt envelope conformations.
منابع مشابه
Fused pyridazines: rigid multidentates for designing and fine-tuning the structure of hybrid organic/inorganic frameworks.
Fused pyridazines (1,2,3,6,7,8-hexahydro-cinnolino[5,4,3-cde]cinnoline, L and its 2,2,7,7-tetramethyl derivative, Me4L) are designed as rigid multidentate ligands for the construction of framework solids. In combination with copper(I) bromide (iodide) they provide excellent structural examples for predictive engineering and the possibilities for further fine-tuning of the framework architecture...
متن کامل1,2,3,6,7,8-Hexahydrocinnolino[5,4,3-cde]cinnoline
The title compound, C(12)H(12)N(4), was synthesized by the reaction of hydrazine hydrate and 9-methyl-3,4,6,7-tetra-hydro-2H-xanthene-1,8(5H,9H)-dione in ethanol. In the crystal, the mol-ecule lies across an inversion centre. The pyridazine rings are coplanar and the C(6) rings adopt envelope conformations.
متن کاملNew domino reaction for the selective synthesis of tetracyclic cinnolino[5,4,3-cde]cinnolines.
A new domino reaction for the highly selective synthesis of tetracyclic cinnolino[5,4,3-cde]cinnolines using steric control was described. In this reaction, the use of anthenes with aliphatic groups (R(1)) leads to cinnolino[5,4,3-cde]cinnolines whereas anthenes with aryl groups (R(1)) result in N-amino-1,8-dioxoacridines.
متن کامل2,2,7,7-Tetramethyl-2,3,6,7-tetrahydrobenzofuro[7,6-b]furan
The title compound, C(14)H(18)O(2), was obtained as a by-product during the preparation of carbofuran phenol. The two dihydro-furan rings are in envelope conformations.
متن کامل2,2,7,7-Tetramethyl-1,2,3,4,5,6,7,8-octahydroacridine-1,8-dione
The whole molecule of the title compound, C17H21NO2, is generated by twofold rotational symmetry. The N atom and the C and H atoms in position 4 of the pyridine ring lie on the twofold axis. The cyclohexene ring has a sofa conformation with the CH2 C atom adjacent to the dimethyl-substituted C atom displaced by 0.5949 (16) Å from the mean plane of the other five C atoms. In the crystal, weak C-...
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عنوان ژورنال:
دوره 65 شماره
صفحات -
تاریخ انتشار 2009