Zhao Li-Qin, Li Bin, Li Yi-Qun
Department of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 10;66(Pt 12):o3115. doi: 10.1107/S1600536810045253.
The title spiro-oxindole compound, C(26)H(23)N(3)O(3), was prepared by the reaction of isatin, 3-methyl-1-phenyl-2-pyrazolin-5-one and 5,5-dimethyl-cyclo-hexane-1,3-dione in an ethanol solution. The fused cyclo-hexene ring adopts an envelope conformation. The dihedral angle between the aromatic and pyrazoline rings is 23.70 (8)°. An intra-molecular C-H⋯O inter-action occurs. The crystal structure is stabilized by N-H⋯N hydrogen-bonding inter-actions, leading to a zigzag chain along the b axis.
标题螺环氧化吲哚化合物C(26)H(23)N(3)O(3)是通过异吲哚酮、3-甲基-1-苯基-2-吡唑啉-5-酮和5,5-二甲基环己烷-1,3-二酮在乙醇溶液中反应制备的。稠合的环己烯环呈信封构象。芳环和吡唑啉环之间的二面角为23.70 (8)°。存在分子内C-H⋯O相互作用。晶体结构通过N-H⋯N氢键相互作用得以稳定,沿b轴形成之字形链。