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Diethyl 4,4'-dihy-droxy-3,3'-{[(3aRS,7aRS)-2,3,3a,4,5,6,7,7a-octa-hydro-1H-1,3-benzimidazole-1,3-di-yl]bis-(methyl-ene)}dibenzoate.


ABSTRACT: The heterocyclic ring in the title compound, C(27)H(34)N(2)O(6), has an envelope conformation on one of the bridgehead C atoms [Q(2) = 0.4487?(19)?Å and ? = 291.3?(2)°]. Two strong intra-molecular O-H?N hydrogen bonds stabilize the mol-ecular conformation. The benzoate groups differ in the relative orientations of the ethyl groups, as quanti-fied by the values of the C-O-C-C torsion angles of -86.5?(2) and -178.97?(17)°. The carbonyl groups are nearly coplanar with the benzene rings, forming C-C-C-O torsion angles of 0.9?(3) and 3.4?(3)°. The crystal structure is stabilized by weak inter-molecular C-H?O inter-actions.

SUBMITTER: Rivera A 

PROVIDER: S-EPMC3247559 | biostudies-other | 2011 Nov

REPOSITORIES: biostudies-other

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Diethyl 4,4'-dihy-droxy-3,3'-{[(3aRS,7aRS)-2,3,3a,4,5,6,7,7a-octa-hydro-1H-1,3-benzimidazole-1,3-di-yl]bis-(methyl-ene)}dibenzoate.

Rivera Augusto A   Quiroga Diego D   Ríos-Motta Jaime J   Fejfarová Karla K   Dušek Michal M  

Acta crystallographica. Section E, Structure reports online 20111005 Pt 11


The heterocyclic ring in the title compound, C(27)H(34)N(2)O(6), has an envelope conformation on one of the bridgehead C atoms [Q(2) = 0.4487 (19) Å and ϕ = 291.3 (2)°]. Two strong intra-molecular O-H⋯N hydrogen bonds stabilize the mol-ecular conformation. The benzoate groups differ in the relative orientations of the ethyl groups, as quanti-fied by the values of the C-O-C-C torsion angles of -86.5 (2) and -178.97 (17)°. The carbonyl groups are nearly coplanar with the benzene rings, forming C-C  ...[more]

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