Research Article: N′-tert-Butyl-N′-(3,5-dimethyl­benzo­yl)-2,2-dimethyl-4-oxochroman-6-carbo­hydrazide

Date Published: August 01, 2009

Publisher: International Union of Crystallography

Author(s): Zhongzhen Zhou, Wenwei You, Zhongkun Tang, Peiliang Zhao.


In the crystal structure of the title compound, C25H30N2O4, the steric size of the tert-butyl group causes the 3,5-dimethyl­phenyl ring to adopt a transoid geometry with respect to the N—C(O) bond. The six-membered heterocyclic ring is disordered over two sites, with occupancies of 0.553 (4) and 0.447 (4). Intra­molecular C—H⋯O inter­actions are present. In the crystal, mol­ecules are linked by inter­molecular N—H⋯O and C—H⋯O hydrogen bonds.

Partial Text

For general background to dibenzoyl­hydrazines and their derivatives, see: Sawada et al. (2003 ▶). For a related structure, see: Zhao et al. (2005 ▶). For the preparation of the title compound, see: Zhao et al. (2007 ▶); Mao et al. (2008 ▶).




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