Comments on photochromism of 3-(3-pyridyl)sydnone and 4-alkenylsydnones
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چکیده
منابع مشابه
SYNTHESIS AND PHARMACOLOGICAL EVALUATION OF 6-CARBETHOXY-5-(3'-BROMOPHENYL)-3-ARYL-2-CYCLOHEXENONES AND 6-ARYL-4-(3'-BROMOPHENYL)-3-OXO-2,3A,4,5-TETRAHYDRO-2H-INDAZOLES
6-Carbethoxy-5-(3'-bromophenyl)-3-aryl-2-cyclohexenones 2a-j were obtained from the1-Aryl-3-(3'-bromophenyl)-2-propene-1-ones 1a-j by Micheal addition of ethyl acetoacetate, followed by internal Claisen condensation. Reaction of 2a-j with hydrazine hydrate afforded the corresponding 6-Aryl-4-(3'-bromophenyl)-3-oxo-2,3a,4,5-tetrahydro-2H-indazoles 3a-j. The structures of newly synthesized compou...
متن کاملCondensation of thiohydrazide analogues with 4-bromo-3, 6-dichloropyridazine: an efficient rout to pyridazino[4, 3-e][1, 3, 4] thiadiazines
Abstract- Some new 3-(alkylsulfanyl)- 7-chloro-1-phenyl-1H-pyridazino [4,3-e][1,3,4]thiadiazine were synthesized by treatment of the alkyl-2-phenylhydrazinecarbodithioates with 4-bromo-3,6-dichloropyridazine in alkaline acetonitril. Orientation of the reaction has been determined by X-Ray crystallography technique. The chlorine atom on the number 7 position of these products was repla...
متن کاملCondensation of thiohydrazide analogues with 4-bromo-3, 6-dichloropyridazine: an efficient rout to pyridazino[4, 3-e][1, 3, 4]thiadiazines.
Some new 3-(alkylsulfanyl)- 7-chloro-1-phenyl-1H-pyridazino [4,3-e][1,3,4]thiadiazine were synthesized by treatment of the alkyl-2-phenylhydrazinecarbodithioates with 4-bromo-3,6-dichloropyridazine in alkaline acetonitril. Orientation of the reaction has been determined by X-Ray crystallography technique. The chlorine atom on the number 7 position of these products was replaced by secondary am...
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ترکیبات 3-hydroxymethyldihydrobenzofuran foluenesulfonate and 10,4-hydroxymethyl-2,3-dihydrobenzopyran toluenesulfonate 19 تهیه شده اند. ترکیب تالوئن سولفات 10 از راه زیر تهیه شده است . 3-coumaranone 2 از دو روش تهیه شده است . در روش اول 2-phenoxyacetic acid 1 از فنیل و کلرواستیک اسید تهیه شده که بعد به کلرید نظیرش تبدیل گردید و این جسم بنوبه خود تحت واکنش فریدل - کرافت در اثر حلقوی شدن به جسم ...
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ژورنال
عنوان ژورنال: Journal of Photochemistry and Photobiology A: Chemistry
سال: 2015
ISSN: 1010-6030
DOI: 10.1016/j.jphotochem.2014.10.010