Synthesis and X-ray structure of 5′-methoxy-2,4,6-trimethyl-2′-nitrosobiphenyl

The synthesis and X-ray crystal structure of 5'-methoxy-2,4,6-trimethyl-2'-nitrosobiphenyl is reported. The compound (C16H17NO2) is monoclinic, with a = 11.080(4), b = 16.899(6), c = 15.410(5) Angstrom, beta = 108.329(5)degrees, and space group P2(1)/n. There are two independent molecules within the crystal. In each of these molecules the two phenyl rings are mutually orthogonal, with interplanar dihedral angles of 85.09 and 89.43degrees respectively. The nitroso substituents are essentially coplanar with the phenyl ring, with torsional angles of only 3.5 and 2.2degrees, respectively, while the methoxy groups make angles of 5.2 and 10.0degrees, respectively, with the phenyl ring.