1. 2-Isobutyl-6-phenyl-imidazo[2,1-b][1,3,4]thia-diazole
Hoong-Kun Fun, Madhukar Hemamalini, D Jagadeesh Prasad, Prakash Anil Castelino, V V Anitha Acta Crystallogr Sect E Struct Rep Online. 2011 Jan 8;67(Pt 2):o254. doi: 10.1107/S1600536810053201.
In the title compound, C(14)H(15)N(3)S, the imidazo[2,1-b][1,3,4]thia-diazole fused-ring system is close to planar, with a maximum deviation of 0.042 (1) Å, and the dihedral angle between it and the phenyl ring is 24.21 (6)°. The isobutyl group is disordered over two sets of sites in a 0.899 (9):0.101 (9) ratio. In the crystal, weak aromatic π-π stacking inter-actions involving the imidazole and thia-diazole rings with a centroid-centroid distance of 3.8067 (7) Å occur.
2. 2-(4-Isobutyl-phen-yl)-1-(morpholin-4-yl)propan-1-one
Nasirullah, Nazar Ul Islam, M Nawaz Tahir, Ikhtiar Khan, Muhammad Zulfiqar Acta Crystallogr Sect E Struct Rep Online. 2012 Sep 1;68(Pt 9):o2637. doi: 10.1107/S1600536812033442. Epub 2012 Aug 4.
In the title compound, C(17)H(25)NO(2), the morpholine ring adopts a chair conformation. The benzene ring makes a dihedral angle of 39.81 (13)° with the basal plane of the morpholine group.
