X-ray structure analysis of 3-chloro-7-hydroxy-4- methyl-chroman-2-one
نویسندگان
چکیده
منابع مشابه
6-Chloro-4-(2-phenylethenyl)chroman-2-one
The title compound, C(17)H(13)ClO(2), was obtained from the oxidation of 6-chloro-4-(2-phenyl-ethen-yl)chroman-2-ol, which was synthesized by the reaction of of (E)-3-(5-chloro-2-hy-droxy-phen-yl)acryl-aldehyde with styrylboronic acid using diethyl-amine as a catalyst. The six-membered pyran-one ring of the chromane system has a screw-boat conformation. The dihedral angle between the least-squa...
متن کامل(E)-6-Methyl-3-(2-methylbenzylidene)chroman-2-one
In the title compound, C(18)H(16)O(2), the heterocyclic ring of the chroman-2-one system adopts a slightly distorted screw-boat conformation. The dihedral angle between the least-squares planes of the coumarin ring system and the benzene ring is 67.5 (1)°. The crystal packing features C-H⋯O hydrogen bonds, which link the mol-ecules into centrosymmetric R(2) (2)(8) dimers, and C-H⋯π inter-actions.
متن کامل7-Methoxy-3-(4-methoxyphenyl)chroman-4-one
The asymmetric unit of the title compound, C(17)H(16)O(4), contains two crystallographically independent mol-ecules with different absolute configurations.
متن کاملAntitubercular effect of 8-[(4-Chloro phenyl) sulfonyl]-7-Hydroxy-4-Methyl-2H-chromen-2-One in guinea pigs
OBJECTIVE TO EVALUATE THE ANTITUBERCULAR EFFICACY AND SAFETY OF NEW CHEMICAL ENTITY (NCE): 8-[(4-Chloro phenyl) sulfonyl]-7-Hydroxy-4-Methyl-2H-chromen-2-One (CSHMC) in guinea pigs. MATERIALS AND METHODS This pilot study was carried out in guinea pigs. They were infected with M. tuberculosis H(37)Rv (1.5 × 10(4) cfu/guinea pig) via intramuscular route. After 30 days, infections were confirmed...
متن کامل2-Methyl-3-(2-methylphenyl)-7-nitroquinazolin-4(3H)-one
In the title methaqua-lone analogue, C(16)H(13)N(3)O(3), the 2-tolyl group is almost orthogonal [dihedral angle = 85.20 (5)°] to the fused ring system (r.m.s. deviation of fitted non-H atoms = 0.029 Å). In the crystal, twofold symmetry generates two-mol-ecule aggregates linked by C-H⋯O and π-π inter-actions [ring centroid-centroid distance = 3.4967 (6) Å].
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ژورنال
عنوان ژورنال: Journal of Applied and Natural Science
سال: 2011
ISSN: 2231-5209,0974-9411
DOI: 10.31018/jans.v3i1.150