3-[2-(Triphenylphosphanylidene)acetyl]-2H-chromen-2-one
نویسندگان
چکیده
منابع مشابه
3-Benzyl-2H-chromen-2-one
The title compound, C(16)H(12)O(2), is a coumarin which was isolated from stones of the Chinese traditional medicine Clausena lansium. The pyrone ring is almost planar, with a mean deviation of 0.0135 (4) Å. The benzene ring (A) of the benzopyrone unit forms dihedral angles of 1.82 (5) and 72.86 (2)° with the pyrone ring and the substituent benzene ring, respectively. The crystal structure is s...
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The non-H atoms of the title compound, C(11)H(6)BrFO(3), are essentially coplanar (r.m.s. deviation for all non-H atoms = 0.074 Å). In the crystal, the molecules are linked by C-H⋯O and C-H⋯Br inter-actions.
متن کامل3-[2-(Triphenylphosphanylidene)acetyl]-2H-chromen-2-one
In the title compound, C(29)H(21)O(3)P, a coumarin-substitued ylid, the P atom is linked to three benzene rings and a planar coumarin moiety via a methyl-enecarbonyl group. The bond lengths in the P=C-C=O fragment clearly indicate a delocalized system involving the olefinic and carbonyl bonds. The mol-ecular structure is stabilized by an intra-molecular C-H⋯O inter-action that results in an S7 ...
متن کامل3-Acetyl-4-hydroxy-6,7-dimethyl-2H-chromen-2-one
In the title coumarin derivative, C(13)H(12)O(4), the 2H-chromene ring system is essentially planar [maximum deviation = 0.047 (1) Å]. An intra-molecular hydrogen bond is observed between the hy-droxy and the ketonic O atoms. In the crystal, pairs of inter-molecular C-H⋯O hydrogen bonds link inversion-related mol-ecules into dimers. Additional inter-molecular C-H⋯O hydrogen bonds further inter-...
متن کامل3-Hydroxymethyl-6,8-dimethoxy-2H-chromen-2-one
The asymmetric unit of the title compound, C(12)H(12)O(5), contains four independent mol-ecules. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into one-dimensional infinite chains. They are arranged in a nearly parallel fashion along the b axis and stabilized by π-π inter-actions [3.443 (2) Å].
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2013
ISSN: 1600-5368
DOI: 10.1107/s160053681300127x