Dwie dekady chemo-enzymatycznej reakcji Baeyera-Villigera
Journal Title: Wiadomości Chemiczne - Year 2014, Vol 68, Issue 11
Abstract
The Baeyer–Villiger oxidation of ketones to lactones or esters is a reaction of significant interest in organic chemistry owing to very wide range of possible applications, e.g. in the synthesis of antibiotics, steroids, pheromones and monomers for polymerisation. The organic percarboxylic acids typically used as oxidants in these reactions are fairly expensive, often poorly stable and hazardous, and this consequently limits their commercial application. Therefore, the chemo-enzymatic approach appears to be a very attractive alternative. The paper presents literature reports concerning the application the use of lipase B from Candida antarctica in the chemo-enzymatic Baeyer-Villiger oxidation. It involves oxidation of long- or medium-chain carboxylic acids with H2O2 or urea hydrogen peroxide to generate in situ peracid which is later used to oxidise ketones to lactones.
Authors and Affiliations
Agnieszka Drożdż, Rafał Bielas, Anna Chrobok
Tautomeryzm i aktywność biologiczna β-diketonów, triketonów, β-ketoestrów i β-ketoamidów : mini przegląd
The review deals with β-diketones, β-ketoester, β-ketoamides, triketones, their tautomerism and biological activity. In addition, it covers briefly methods to detect tautomerism in particular NMR and deuterium isotope ef...
Atroposelektywna synteza naturalnych chiralnych osiowo związków biarylowych. Część 2
A direct aryl-aryl coupling reaction is the most common method for the synthesis of axially chiral biaryls. Atroposelective coupling can be accomplished by three main strategies (Scheme 1) [1, 11]: a) intramolecular coup...
Zasady Schiffa : wybrane syntezy, reakcje i aktywność biologiczna
Schiff bases are compounds with a functional group that contains a carbon- -nitrogen double bond with the nitrogen atom connected to an aryl or alkyl group. Schiff bases are condensation products of primary amines with c...
TEORETYCZNE BADANIA KATALIZATORA CrOX/SiO2
The Phillips CrOx/SiO2 catalyst is one of the most commonly used system in the industrial production of high-density polyethylene (HDPE). This system has been extensively studied since decades, mainly by means of experim...
Równowagi asocjacyjne alkilopochodnych mocznika i tiomocznika
The studies and comparison of a series of molecular mono- and di-substituted derivatives of urea and thiourea in solvents of increasing polarity are presented [1–4]. These substances are characterized by a high tendency...