Date Published: February 01, 2012
Publisher: International Union of Crystallography
Author(s): Nasser R. El-Brollosy, Ali A. El-Emam, Omar A. Al-Deeb, Seik Weng Ng.
The pyrimidine ring in the title compound, C19H24N2O3, is nearly planar (r.m.s. deviation = 0.008 Å); the C atom at the 5-position deviates by 0.054 (3) Å from the mean plane and the C atom at the 6-position by 0.006 (3) Å in the opposite direction. The benzene ring is approximately perpendicular to the pyrimidine ring [dihedral angle = 83.90 (10)°]. The amino group is hydrogen-bond donor to the exocyclic O atom at the 2-position of an adjacent molecule, the hydrogen bond generating an inversion dimer. The cyclopropyl ring is disordered over two sets of sites with the major component having 71.5 (4)% occupancy.
For the synthesis, see: El-Brollosy et al. (2009 ▶).