Diethyl 2-tert-butyl-4,11-dioxo-2,3-dihydro-cis-1H,5H,10H-2,3a,4a,10a,11a-pentaazabenzo[f]indeno[2,1,7-ija]azulene-11b,11c-dicarboxylate
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چکیده
In the title mol-ecule, C(24)H(31)N(5)O(6), the two ethyl fragments are each disordered over two conformations [occupancy ratios 0.58 (13)/0.42 (13) and 0.56 (12)/0.44 (12)]. The crystal packing exhibits inter-molecular non-classical C-H⋯O hydrogen bonds and π-π inter-actions between benzene rings [centroid-centroid distances = 3.836 (5) Å].
منابع مشابه
Diethyl 7,8-dibromo-4,11-dioxo-11b,11c-dihydro-5H,10H-2-oxa-3a,4a,10a,11a-tetraazabenz[f]indeno[2,1,7,7a-ija]azulene-11b,11c-dicarboxylate
The title compound, C(20)H(20)Br(2)N(4)O(7), is an inter-mediate for mol-ecular clips. The seven- and six-membered rings have chair conformations, while the five-membered rings adopt envelope conformations. In the crystal structure, weak C-H⋯O and C-H⋯Br inter-actions link the mol-ecules into a three-dimensional network. The eth-oxy and ethyl groups are disordered over two orientations, with oc...
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In the title compound, C(24)H(29)Br(2)N(5)O(6), a glycoluril derivative, the 1,4-dibromo-benzene ring is fused to the seven-membered ring of the glycoluril unit containing two N atoms. The two five-membered rings in the glycoluril unit are approximately planar and the dihedral angle between them is 69.8 (2)°. The six-membered ring containing three N atoms adopts a chair conformation. The crysta...
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In the title compound, C(18)H(20)N(4)O(6), the dihedral angle between the two fused five-membered rings in the glycoluril unit is 64.42 (2)°. The crystal structure features inter-molecular N-H⋯O and C-H⋯O interactions. An intramolecular C-H⋯O contact is also present.
متن کاملDiethyl 2,6-(2,4-dichlorophenyl)-4,8-dioxo-2,3,6,7-tetrahydro-1H,5H-2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-8b,8c-dicarboxylate
The title mol-ecule, C(28)H(28)Cl(4)N(6)O(6), is built up from four fused rings, viz. two nearly planar imidazole five-membered rings which adopt envelope conformations with the C=O groups at the flap position, and two triazine six-membered rings which adopt chair conformations. Each six-membered ring has a 2,4-dichloro-benzyl substituent attached to an N atom. In the mol-ecule, the two ethyl g...
متن کاملSynthesis and biological activity of novel series of 4-methoxy, and 4,9-dimethoxy-5-substituted furo[2,3-g]-1,2,3-benzoxathiazine-7,7-dioxide derivatives
A novel series of 4-methoxy, and 4,9-dimethoxy-5-substituted furo[2,3-g]-1,2,3-benzoxathiazine-7,7-dioxide derivatives 3a,b, 10a-g and 11a-g were prepared in good yields via the reaction of 4-methoxy (1a) and 4,7-dimethoxy-5-acetyl-6-hydroxybenzofurans (1b) and their α,β-unsaturated keto derivatives 6a-g and 7a-g with chlorosulfonyl isocyanate (CSI). On the other hand, N-chlorosulfonyl carbamat...
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