Ethyl 2-[2-(4-oxo-4H-chromen-2-yl)phenoxy]acetate
نویسندگان
چکیده
منابع مشابه
Ethyl (E)-3-(6-methyl-4-oxo-4H-chromen-3-yl)prop-2-enoate
In the title compound, C(15)H(14)O(4), the chromone ring system is close to being planar [maximum deviation = 0.015 (2) Å]. The double bond of the ethyl prop-2-enoate chain adopts an E conformation and an intra-molecular C-H⋯O hydrogen bond generates an S6 ring. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R(2) (2)(14) loops. Weak π-π inter-actions [centroid...
متن کاملEthyl 2-[(2-oxo-2H-chromen-7-yl)oxy]acetate
In the title compound, C13H12O5, the mean plane of the 2H-chromene ring system (r.m.s deviation = 0.026 Å) forms a dihedral angle of 81.71 (6)° with the mean plane of ethyl 2-hy-droxy-acetate moiety (r.m.s deviation = 0.034 Å). In the crystal, C-H⋯O hydrogen bonds result in the formation of zigzag layers parallel to the bc plane.
متن کامل2-(5,7-Dimethoxy-4-oxo-4H-chromen-2-yl)phenyl 4-toluenesulfonate
In the crystal structure of the title compound, C(24)H(20)O(7)S, the chromone system makes a dihedral angle of 37.32 (7)° with the adjacent benzene ring. The chromone ring system and the tolyl ring are almost parallel, with a dihedral angle of 4.56 (9)°. The tolyl ring is twisted at an angle of 41.75 (6)° with respect to the benzene ring. Weak intra- and inter-molecular C-H⋯O inter-actions are ...
متن کامل4-Hydroxy-3-[(4-hydroxy-6,7-dimethyl-2-oxo-2H-chromen-3-yl)(4-oxo-4H-chromen-3-yl)methyl]-6,7-dimethyl-2H-chromen-2-one
In the title compound, C(32)H(24)O(8), the mol-ecular structure is disordered over two positions with refined site occupancies of 0.8746 (10) and 0.1254 (10). The mean plane of the three chromeno rings make dihedral angles with each other of 65.12 (4), 62.91 (4) and 59.70 (4)° in the major occupancy component and 59.1 (3), 66.1 (3) and 58.8 (3)° in the minor component. Intra-molecular O-H⋯O hyd...
متن کامل2-Oxo-2-(2-oxo-2H-chromen-3-yl)ethyl diethyldithiocarbamate
In the title compound, C16H17NO3S2, the dihedral angles between the O/C/C/S group and the 2H-chromene ring system and the thio-carbamate group are 14.46 (9) and 83.30 (9)°, respectively. The bond-angle sum at the N atom is 360.0°. One of the methyl C atoms lies above the thio-carbamate plane and one lies below it [deviations = 1.264 (3) and -1.147 (3) Å, respectively]. In the crystal, inversion...
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ژورنال
عنوان ژورنال: IUCrData
سال: 2018
ISSN: 2414-3146
DOI: 10.1107/s2414314618009938