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Ethyl 2-[(3-chloro-phen-yl)hydrazono]-3-oxobutanoate.


ABSTRACT: The mol-ecule of the title oxobutanoate derivative, C(12)H(13)ClN(2)O(3), adopts a keto-hydrazo tautomeric form and is roughly planar, the angle between the benzene ring and the mean plane through the hydrazone and aliphatic chain being 1.49?(6)°. This planarity is further aided by the formation of an intra-molecular N-H?O hydrogen bond which generates an S(6) ring motif. The aromatic ring and aliphatic chain have a trans configuration with respect to the N-N bond. In the crystal packing, centrosymmetric R(2) (2)(16) dimers are formed through pairs of weak C-H?O(3-oxo) inter-actions. These dimers are linked together through weak C-H?O(carboxyl-ate C=O) inter-actions into ribbons along the b-axis direction. These ribbons are stacked along the a-axis direction. The crystal also exhibits Cl?Cl [3.4988?(6)?Å] and C?O [3.167?(2)-3.335?(2)?Å] short contacts.

SUBMITTER: Fun HK 

PROVIDER: S-EPMC2969699 | BioStudies | 2009-01-01T00:00:00Z

REPOSITORIES: biostudies

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