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6',7'-Dimeth-oxy-1',2'-dihydro-spiro-[cyclo-hexane-1,2'-quinazolin]-4'(3'H)-one. 2011

Li-Jun Zhang, and Yang Song, and Xiang-Ning Luo, and Hui Li
School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China.

In the title compound, C(15)H(20)N(2)O(3), prepared from the reaction of 2-amino-4,5-dimeth-oxy-benzonitrile and cyclo-hexa-none, the six-membered diaza ring assumes an envelope conformation. In the crystal, inversion dimers are formed by pairs of N-H⋯O hydrogen bonds. Futher N-H⋯O hydrogen bonds link the dimers into a two-dimensional structure parallel to (001).

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