Syntheses of Polyurethanes from Piperazine Derivatives
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چکیده
منابع مشابه
Syntheses of Anisomycin Derivatives
The structure of anisomycin has been determined by X-ray investigation4 and the absolute configuration was confirmed by chemical correlation.5 Anisomycin has attracted considerable synthetic interest, and several synthetic studies, derivative syntheses as well as total syntheses, have been reported.6 Especially, the synthesis of its analogues has revealed the structure-activity relationship of ...
متن کامل[Syntheses of 1,3,4-thiadiazole derivatives].
ةصلاخلا بكرملل ةدیدج تاقتشم ریضحت ىلا ثحبلا يمری 4,3,1 ةیتلاا تلاعافتلا ءارجا للاخ نم لوزایادایاث : ًلاوأ : ب كرملل فیش ةدعاق ریضحت ) 2 و نیما 5 و تبكرم 4,3,1 لوزا یادایاث ( يلیفو یلكوینلا ضیو عتلا ءارجاو ةدعاقلل يرتسلاا ب كرملا نیو كت ى لا يدؤ یل مویدو صلا دیسكوثیا دو جوب ل ثیلاا تاتیسا ومورب عم ) 3 ( ، يذ لا یازاردیھلا عم ھتلعافم تمت ن 99 % د یازاردیھلا قتشم ریضحتل ) 4 ( فیش دعاوق نم د یدع...
متن کاملSyntheses and activities of some bactobolin derivatives.
Some derivatives of bactobolin were prepared from bactobolin by dehydration or substitution reactions through tris(dimethylamino)alkoxyphosphonium salt formation. A derivative with low toxicity, 6-deoxybactobolin, showed moderate activity against Gram-positive and Gram-negative bacteria including methicillin-resistant Staphylococcus aureus.
متن کاملSyntheses of soluble, pi-stacking tetracene derivatives.
[reaction: see text] The syntheses of a series of fluorine- and alkyl/alkoxy-functionalized tetracenes are reported. These functional groups are found to improve the solubility in common organic solvents and tune molecular arrangement in solids. The crystal packing, electrochemical behavior, and UV-vis absorbance spectroscopy of these materials are discussed.
متن کاملSynthesis of Pyrimidine Incorporated Piperazine Derivatives and their Antimicrobial Activity
Thiophene substituted chalcones (1a-e) were cyclised with thiourea in presence of potassium hydroxide to get 4-substituted-6-(thiophen-2-yl)pyrimidine-2-thiols (2a-e) which were then stirred with methyl iodide to obtain 4-substituted-2-(methylsulfanyl)-6-(thiophen-2-yl)pyrimidines (3a-e). Compounds (3a-e) were refluxed with different N-methylpiperazine and N-phenylpiperazine to afford 4-substit...
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ژورنال
عنوان ژورنال: Journal of Synthetic Organic Chemistry, Japan
سال: 1968
ISSN: 0037-9980,1883-6526
DOI: 10.5059/yukigoseikyokaishi.26.278