Abstract
M r = 349.4 , monoclinic, P21/c, a = 10.416 (4), b = 19.607 (7), c = 10.096 (3) A, beta = 117.04 (3)°, V = 1836.5 (12) A3, Z = 4, Dx = 1.26 Mg m-3, lambda(Mo Ka) = 0.71069 A, mü = 0.77 cm-1, F(000) = 744, T= 291 K, R = 0.063 for 2200 reflections. The bicyclic, cis-fused title compound has been synthesized from 2,2-dimethyl-3-dimethylamino- 2H-azirine and 2,4-diphenyl-2-oxazolin-5-one.