Ethyl 1-(2-hy-droxy-eth-yl)-2-p-tolyl-1H-benzimidazole-5-carboxyl-ate.

ABSTRACT: The asymmetric unit of the title compound, C(19)H(20)N(2)O(3), contains two mol-ecules (A and B) with slightly different orientations of the ethyl groups with respect to the attached carboxyl-ate groups. Intra-molecular C-H?O hydrogen bonds generate S(8) ring motifs in both mol-ecules A and B. In each mol-ecule, the benzimidazole ring system is essentially planar, with maximum deviations of 0.023?(1) and 0.020?(1)?Å, respectively, for mol-ecules A and B. The dihedral angle between the benzimidazole ring system and the phenyl ring is 37.34?(5)° for mol-ecule A and 42.42?(5)° for mol-ecule B. In the crystal, O-H?N and C-H?O hydrogen bonds link the mol-ecules into [100] columns with a cross-section of two-mol-ecule by two-mol-ecule wide, and further stabilization is provided by weak C-H?? and ?-? inter-actions [centroid separations = 3.5207?(7) and 3.6314?(8)?Å].

SUBMITTER: Arumugam N 

PROVIDER: S-EPMC3006903 | biostudies-other | 2010

REPOSITORIES: biostudies-other