Antibacterial activity of coumarine derivatives synthesized from 4-amino7-chloro-2-oxo-2H-chromen -3-carbaldehyde and comparison with standard drug
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چکیده
منابع مشابه
(7-Chloro-2-oxo-2H-chromen-4-yl)methyl diethylcarbamodithioate
In the title compound, C15H16ClNO2S2, the 2H-chromene ring system is nearly planar, with a maximum deviation of 0.023 (2) Å. In the crystal, C-H⋯O hydrogen bonds give R 2 (1)(7) motifs, which generate [100] chains. C-H⋯π and π-π inter-actions between chromene moieties [shortest ring centroid-centroid distance = 3.6199 (13) Å] consolidate the packing.
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 کاملCrystal structure of (tert-butylcarbamoyl)(4-chloro-2-oxo-2H-chromen-3-yl)methyl acetate
In the title compound, C17H18ClNO5, which was synthesized by reacting 4-chloro-3-formyl-coumarin, acetic acid and tert-butyl isocyanide, the acetamido side chain is convoluted with ring-to-side chain C-C-C-C, C-C-C-N and C-C-N-C torsion angles of -123.30 (14), -135.73 (12) and 176.10 (12)°, respectively. In the crystal, N-H⋯O and weak C-H⋯O hydrogen bonds are present, which together with π-π co...
متن کامل2-Oxo-2H-chromen-4-yl propionate
In the title compound, C12H10O4, the atoms of the 2-oxo-2H-chromene ring system and the non-H atoms of the 4-substituent all lie on a crystallographic mirror plane. The mol-ecular structure exhibits an intra-molecular C-H⋯O hydrogen bond, which generates an S(6) ring. In the crystal, mol-ecules form R 3 (2)(12) trimeric units via C-H⋯O inter-actions which propagate into layers parallel to the a...
متن کاملAntioxidant activity of some (7-hydroxy-2-oxo-2H-chromen-4-yl) acetic acid derivatives
A series of coumarin Schiff bases (7-(arylidenehydrazinocarbonylmethoxy)-2-oxo-2H-chromen-4-yl]acetic acid arylidenehydrazide) (4a-k) and N-(2-aryl-4-oxothiazolidin-3-yl)-2-{[4-(2-aryl-4-oxothiazolidin-3-yl)carbamoylmethyl]-2-oxo2H-chromen-7-yloxy}-acetamides (5a-k) were synthesized and evaluated for their antioxidant activity (scavenging of 1,1diphenyl-2-picryhydrazyl radical and phosphomolybd...
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ژورنال
عنوان ژورنال: JOURNAL OF ADVANCES IN CHEMISTRY
سال: 2017
ISSN: 2321-807X
DOI: 10.24297/jac.v12i6.6153