synthesis of azines from carbonyl compounds in a solvent-free condition
Authors
abstract
in an environmentally benign solventless system, aldehydes and ketones were readily converted to their corresponding azines with hydrazine sulfate, sodium hydroxide and alumina in high yield.
similar resources
SYNTHESIS OF AZINES FROM CARBONYL COMPOUNDS IN A SOLVENT-FREE CONDITION
In an environmentally benign solventless system, aldehydes and ketones were readily converted to their corresponding azines with hydrazine sulfate, sodium hydroxide and alumina in high yield.
full textsynthesis of sulfides from alcohols and thiols in solvent-freeconditions and deoxygenation of sulfoxides
کاتالیست یک سنتز جدید برای تیواترها توصیف شده است. واکنش الکل ها با آریل، هتروآریل و آلکیل تیو ل ها درحضور 1،3،5- تری آزو- 2،4،6- تری فسفرین-2،2،4،4،6،6 هگزاکلراید ((tapc به عنوان یک کاتالیست موُثر، بازده های خوب تا عالی از تیواترها را حاصل می کند. علاوه براین، واکنش تحت شرایط بدون فلز و بدون حلال پیش می رود، بنابراین یک مکمل جالب برای روش های شناخته شده سنتز تیواترها ارائه می دهد. یک مکانیسم ا...
15 صفحه اولSOLVENT-FREE SYNTHESIS OF PYRROL DERIVATIVES USING MULTICOMPONENT REACTIONS OF 1,3-DICARBONYLS, ACTIVATED CARBONYL COMPOUNDS, AND PRIMARY ALKYLAMINES
A one-pot synthesis of pyrrole derivatives via reaction between activated carbonyl compounds, primary amines and 1,3-dicarbonyls under solvent-free conditions is described.
full textSOLVENT-FREE SYNTHESIS OF PYRROL DERIVATIVES USING MULTICOMPONENT REACTIONS OF 1,3-DICARBONYLS, ACTIVATED CARBONYL COMPOUNDS, AND PRIMARY ALKYLAMINES
one-pot synthesis of pyrrole derivatives via reaction between activated carbonyl compounds, primary amines and 1,3-dicarbonyls under solvent-free conditions is described.
full textcomparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
15 صفحه اولSynthesis of 5-amino-1-aryl-4-cyanoimidazoles from formamidines under solvent-free condition
The aryl-(Z)-N-[2-amino-1,2-dicyanovinyl]formamidine 2 cyclize in solvent-free conditions and in the presence of a base to give a 5-amino-1-aryl-4-cyanoimidazoles 3. Silica sulfuric acid as an efficient and reusable heterogeneous catalyst has been used for the preparation of amidines 2 from formimidate 1 through reaction with aromatic amines at room temperature and in good to excellent yields. ...
full textMy Resources
Save resource for easier access later
Journal title:
journal of sciences islamic republic of iranجلد ۱۲، شماره ۳، صفحات ۰-۰
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023