1.
IUCrdata
; 7(Pt 9): x220919, 2022 Sep.
Artigo
em Inglês
| MEDLINE
| ID: mdl-36337456
RESUMO
The title compound, C20H16N2O6 (systematic name: 4-hy-droxy-phenyl N-{4-[(4-hy-droxy-phen-oxy-carbon-yl)amino]-phen-yl}carbamate), contains two urethane groups substituting the central benzene ring in para positions. The mol-ecule is centrosymmetric, and displays a twisted conformation for the three aromatic rings [the dihedral angle between central benzene ring and the urethane group is 33.4â (6)°, and that between the latter and the terminal ring is 65.1â (1)°]. In the crystal, a three-dimensional framework is formed through O-Hâ¯O and N-Hâ¯O hydrogen bonds involving the hy-droxy and urethane functional groups, respectively.