3 research outputs found
Ammonium chloride catalyzed Knoevenagel condensation in PEG-400 as ecofriendly solvent
849-855A simple and selective green methodology has been successfully developed for Knoevenagel condensation in
polyethylene glycol-400 using 10 mol % ammonium chloride as catalyst. The method is applicable to a wide range of
aromatic, heteroaromatic and α,β-unsaturated aldehydes. The reactions have been found to be clean and free from the
formation of the Michael adduct
Ammonium chloride catalyzed Knoevenagel condensation in PEG-400 as ecofriendly solvent
A simple and selective green methodology has been successfully developed for Knoevenagel condensation in polyethylene glycol-400 using 10 mol % ammonium chloride as catalyst. The method is applicable to a wide range of aromatic, heteroaromatic and α,β-unsaturated aldehydes. The reactions have been found to be clean and free from the formation of the Michael adduct
<span style="font-size:12.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-ansi-language: EN-GB;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-GB">Oxidation of aryl and heteroaryl methyl ketone to aryl and heteroarylglyoxals by using CuCl<sub>2</sub>-DMSO</span>
300-305The oxidation of aryl
methyl ketone and heteroaryl methyl ketone to arylglyoxals and heteroaryl
glyoxal respectively has been carried out by using the cheap and easily
available, non toxic, Lewis acid CuCl2 in DMSO solvent at 70-80°C
within 1-2 hr. The reaction can be performed in air without loss of variety of
oxidisable fuctional group like phenolic OH, hetroaryl ring, aryl substituted
methyl, halo, nitro group, etc