Ethyl 2-(2-methyl-1H-benzimidazol-1-yl)acetate

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Ethyl 2-(2-methyl-1H-benzimidazol-1-yl)acetate

A new benzimidazole compound, C(12)H(14)N(2)O(2), has been synthesized by the reaction of 2-methyl-1H-benzimidazole and ethyl 2-bromo-acetate. In the crystal structure, weak inter-molecular C-H⋯N hydrogen bonds link the mol-ecules into chains. π⋯π Contacts (centroid⋯centroid distance = 3.713 Å) are observed. A C-H⋯π inter-action is also present. The N-C-C-O torsion angle is 178.4 (2)°.

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1,3-Bis(1-methyl-1H-benzimidazol-2-yl)-2-oxapropane

In the title mol-ecule, C(18)H(18)N(4)O, the dihedral angle between the mean planes of the two benzimidazole ring systems is 61.5 (1)°.

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Ethyl (E)-1-(2-styryl-1H-benzimidazol-1-yl)acetate

In the title compound, C(19)H(18)NO(2), the dihedral angle between the benzimidazole and phenyl ring planes is 18.18 (17)°. The atoms of the ethyl side chain are disordered over two sets of sites in a 0.50:0.50 ratio. In the crystal, inter-molecular C-H⋯O hydrogen bonds and C-H⋯π contacts help to consolidate the packing.

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2-Methyl-6-(6-methyl-1H-benzimidazol-2-yl)phenol–2-methyl-6-(5-methyl-1H-benzimidazol-2-yl)phenol (3/1)

The title compound, 0.75C(15)H(14)N(2)O·0.25C(15)H(14)N(2)O, is a co-crystal of 2-methyl-6-(6-methyl-1H-benzimidazol-2-yl)phenol as the major component and 2-methyl-6-(5-methyl-1H-benz-imidazol-2-yl)phenol as the minor component. The refined site-occupancy ratio is 0.746 (4)/0.254 (4). The conformations of both components are identical except for that of the methyl substituent on the benzene ri...

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