6',7'-Dimeth-oxy-1',2'-dihydro-spiro-[cyclo-hexane-1,2'-quinazolin]-4'(3'H)-one.
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).
School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384,  People's Republic of China.
Li-Jun
LJ
Zhang
Yang
Y
Song
Xiang-Ning
XN
Luo
Hui
H
Li