All four stereoisomers of coronamic acid were synthesized from both enantiomers of 1,2-butanediol. Cyclopropanation of cyclic sulfate with the dibenzyl malonate' anion gaye cyclopropane dibenzyl ester in a quantitatiye ield. Transformation into a protected amino acid was achieyed by stereoselectiye hydrolysis and Cunius rearrangement as the key steps. Saponification and subsequent acidic hydrol...

The synthesis of novel amide derivatives of benzosuberone 7a-j from commercially available benzosuberone was successfully achieved in six steps. Some of the important reactions that are involved in the synthesis are (i) insertion of methylester (ii) Suzki reaction and (iii) saponification followed by amide bond formation. The newly synthesis benzosuberone derivatives 7a-j were screened for anti...

This work is concerned with polyethylene terephthalate (PET) saponification by different potassium compounds in various polyols as well biodiesel’s main by-product, crude glycerol. It was established that reaction conditions (initial PET/K+ molar ratio, time, etc.) could control the molecular weight of obtained oligomeric products. In ethylene glycol, depolymerization proceeds rapidly, and alre...

Rice bran oil, non conventional oil was blended with six traditional oils in the ratio of 70:30 and 80:20 for the enhancement of its market acceptability and awareness in consumers regarding its use in cooking. Effect of deep-fat frying on these blends was studied by assessing the changes in percent fat absorption and physicochemical properties during repeated frying process (three times). The ...

Production of carotenoids and lipids by Rhodotorula toruloides CBS 14 cultivated on wheat straw hydrolysate was investigated. An ultra-high-performance liquid chromatography (UHPLC) method for carotenoid quantification developed validated. Saponification effects individual were identified, lipid kinetics during cultivation determined. The β-carotene, γ-carotene, torularhodin, torulene identifie...