Short Note ( E ) - 3 - Methyl - 6 - ( 3 - oxo - 3 - ( thiophen - 2 - yl ) - 1 - propenyl ) - 2 ( 3 H ) - benzothiazolone
نویسندگان
چکیده
The title compound, (E)-3-methyl-6-(3-oxo-3-(thiophen-2-yl)-1-propenyl)-2(3H)-benzothiazolone, was synthesized by Claisen-Schmidt condensation of 3-methyl-2(3H)-benzothiazolone-6-carbaldehyde with 2-acetylthiophene in 94% yield. The structure of the target compound was confirmed using 1H-NMR, 13C-NMR, IR, MS, and elemental analysis.
منابع مشابه
MICROWAVE ASSISTED SYNTHESIS AND SPECTRAL STUDIES OF 2- THIOPHEN-2-YLMETHYLENE-2,3,4,9-TETRAHYDRO-CARBAZOL-1-ONE, 3-THIOPHEN-2-YL-4,5-DIHYDRO-10H-2-OXA-1,10-DIAZA- CYCLOPENTA[a]CARBAZOLE AND 3-THIOPHEN-2-YL-2,4,5,10-TETRAHYDRO- 1,2,10-TRIAZA-CYCLOPENTA[a]CARBAZOLE DERIVATIVES
Microwave assisted new aldol condensation reaction of 1-oxo-1,2,3,4tetrahydrocarbazoles 1 with thiophene-2-carbaldehyde 2 in the presence of alcoholic KOH affords a single product 2-Thiophen-2-ylmethylene-2,3,4,9-tetrahydro-carbazol-1-one 3. 3 on irradiation with hydroxylamine hydrochloride yielded 3-Thiophen-2-yl-4,5-dihydro-10H-2-oxa-1,10-diazacyclopenta[a]carbazole 4 and 3 on irradiation wit...
متن کاملN-[2-(6-Methyl-4-oxo-4H-chromen-3-yl)-4-oxothiazolidin-3-yl]furan-2-carboxamide N,N-dimethylformamide solvate
The title mol-ecule, C(18)H(14)N(2)O(5)S·C(3)H(7)NO, comprises of a carboxamide group bonded to a furan ring and a distorted envelope-shaped 4-oxothia-zolidin-3-yl group which is connected to a substituted 6-methyl-4-oxo-4H-chromen-3-yl group. Extensive strong N-H⋯O and weak C-H⋯O inter-molecular hydrogen-bonding inter-actions occur between dimethyl-formamide (DMF), the crystallizing solvent, a...
متن کاملSynthesis of novel biologically active heterocyclic compounds from 2-oxo-2H-benzopyran-6-yl-imidazolidine.
6-Aminocoumarin on treatment with oxalyl chloride gives coumarinyl-6-isocynate (1a-c) which on treatment with glycine gives 1H-3-[2'-oxo-2'H-benzopyran-6'-yl]-5-imidazolidine-2, 4-dione (2a-c). (2a-c) when refluxed with o-chlorobenzaldehyde, m-hydroxybenzaldehyde, 3,4-dimethoxybenzaldehyde and 3-nitrobenzaldehyde separately gives 1H-5-(2"-chlorobenzylidene)-3-(2'-oxo-2'H-benzopyran-6'-yl) imida...
متن کاملCrystal structures of three 6-substituted coumarin-3-carboxamide derivatives
Three coumarin derivatives, viz. 6-methyl-N-(3-methyl-phen-yl)-2-oxo-2H-chromene-3-carboxamide, C18H15NO3 (1), N-(3-meth-oxy-phen-yl)-6-methyl-2-oxo-2H-chromene-3-carboxamide, C18H15NO4 (2), and 6-meth-oxy-N-(3-meth-oxy-phen-yl)-2-oxo-2H-chromene-3-carboxamide, C18H15NO5 (3), were synthesized and structurally characterized. The mol-ecules display intra-molecular N-H⋯O and weak C-H⋯O hydrogen bo...
متن کاملCytotoxic activity of new acetoxycoumarin derivatives in cancer cell lines.
BACKGROUND Coumarin and their derivatives are important and useful compounds with diverse pharmacological properties. In the present study, we evaluated the in vitro cytotoxic activity of new acetoxycoumarin derivatives: 4-(7-methoxy-4-methyl-2-oxo-2H-chromen-3-yl)phenyl acetate (1), 4-(1-methyl-3-oxo-3H-benzo[f]chromen-2-yl)phenyl acetate (2), 4-(6-propionamido-4-methyl-2-oxo-2H-chromen-3-yl) ...
متن کامل