Products Cited in Publications Worldwide N, N′-[Oxybis (benzene-4, 1-diyl)] diacetamide

N, N′-[Oxybis (benzene-4, 1-diyl)] diacetamide

Uppu, Rao M; Agu, Ogad A; Babu, Sainath; Mensah, Patrick F; Fronczek, Frank R

DOI:

Abstract

In the title compound, C16H16N2O3, the phenyl groups are twisted away from coplanarity with the ether linkage, forming a dihedral angle of 59.49 (4)° with each other. The ether oxygen atom lies somewhat out of both phenyl planes, by 0.066 (2) and 0.097 (2) Å. The acetamide substituents have quite different conformations with respect to the phenyl groups on either side of the molecule. On one side, the C—C—N—C torsion angle is 21.0 (2)°, while on the other side it is 76.4 (2)°. In the crystal, the acetamide N—H groups form intermolecular N—H···O hydrogen bonds to acetamide O atom, with both NH groups donating to the same molecule. Thus, ladder-like chains exist in the [101] direction. One of the methyl groups has its H atoms disordered into two orientations, and the crystal chosen for data collection was found to be twinned.

Keywords

crystal structure ; acetaminophen impurity N ; anilide analgesics ; N,N′-(oxybis(4,1-phenylene))diacetamide

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N,N'-(Oxybis(4,1-phenylene))diacetamide

A9116473070-86-897%

N,N'-(Oxybis(4,1-phenylene))diacetamide

55.0/100mg

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