Anilino-2 Methyl-4 N-Methyl-anilino-5 Thiazole-1,3 et Anilino-2 N-Methyl-anilino-5 Phenyl-4 Thiazole-1,3 (Deux Derives du Thiazole-1,3)

Article abstract of DOI:10.1107/S0567740881005724

C17H17N3S (2-anilino-4-methyl-5-N-methyl-anilino-1,3-thiazole), monoclinic, C2/c, a=22.844(8), b=5.634(2), c=25.291(11) Angstroem, β=108.15(3) deg, V=3093(4) Angstroem³, M_r=295, Z=8, D_x=1.26 Mg m^-3.R=0.039 for 1652 reflections.C22H19N3S (2-anilino-5-N-methylanilino-4-phenyl-1,3-thiazole), monoclinic, P2₁/n, a=5.921(2), b=14.642(13), c=21.516(13) Angstroem, β=94.21(4) deg, V=1860(2) Angstroem³, M_r=357, Z=4, D_x=1.27 Mg m^-3.R=0.044 for 1836 reflections.The thiazole ring is planar in both compounds.The data indicate a resonance interaction between the exocyclic nitrogen and the ring.