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RISSynthesis of substituted dipyrromethanes under green conditions
-free, without any excess of pyrrole and avoiding
inconvenient purification.
In this report we use an environmentally friendly homogeneous acidic catalyst for a condensation
reaction of pyrrole with ketones in the absence of any organic...
Long term elevation of خ² hydroxybutyrate in dairy cows through infusion: Effects on feed intake, milk production, and metabolism
A field study to determine the prevalence, dairy herd management systems, and fresh cow clinical conditions associated with ketosis in western European dairy herds
Preparation of 1,5-Fused Tetrazoles under Solvent-Free Conditions
A facile and efficient procedure is developed for a one-pot synthesis of fused
1,5-disubstituted tetrazoles from cyclic ketones and sodium azide in the presence of
aluminum chloride in solvent-free media. Advantages of this method...
A novel copper-catalyzed c-c bond cleavage of aryl (heteroaryl) alkyl ketones for c-n bond formation
A direct generation of amide from aryl (heteroaryl) alkyl ketones has been accomplished via copper(II) catalyzed C-C bond cleavage in the presence of diisopropylamine at moderate temperature. The transformation steps for amide formation comprise...
One - Pot Efficient Beckmann Rearrangement of Ketones Catalyzed by Silica Sulfuric Acid
A one-pot Beckmann rearrangement for the preparation of amides from ketones is described using the
silica sulfuric acid under Microwave irradiation. Advantages of this method are regioselectivity with high yields in a simple...
Dithioacetalization of carbonyl compounds under catalyst-free condition
Protection of carbonyl compounds with 1,3-propanedithiol under a catalyst-free condition in nitromethane
as a solvent has been described.
Ferric Hydrogensulfate Catalysed Schmidt Reaction of Ketones to Amides Under Solvent-Free Conditions
A new, efficient and convenient method has been developed for the one-pot synthesis of amides from
ketones and sodium azide in the presence of ferric hydrogensulfate in solvent-free media. Advantages of
this method are chemoselectivity...
Silica sulfuric acid as a reusable catalyst for the conversion of ketones into amides by a Schmidt reaction under solvent-free conditions
Silica sulfuric acid is a highly efficient reagent for the conversion of a variety of ketones to the corresponding amides via Schmidt reaction under solvent-free conditions. Cyclic, aliphatic and aromatic ketones with electron...
Synthesis, Spectroscopic Characterization and Crystal Structure Determination of 3-(p-Tolylthio)-3-(4-nitrophenyl)-1-phenylpropan-1-one
the reaction of p-nitrochalcone with p-methylthiophenol in the presence of lithium fluoride as nano-catalyst. This β-aryl-β-mercapto ketones characterized by IR, 1HNMR, 13CNMR, elemental analysis, mass spectrometry and single-crystal X-ray determination...