Synthesis of aromatic poly(ether ketones) - [PDF …

AB - Aromatic aldehydes are smoothly converted into the corresponding acylals in good yields in the presence of 0.10 mol% Bi(OTf)3·xH2O. Ketones are not affected under the reaction conditions. The highly catalytic nature of bismuth triflate and the fact that it is relatively non-toxic, easy to handle and insensitive to small amounts of air and moisture makes this procedure especially attractive for large-scale synthesis.

Synthesis of aromatic ketones by acylation of ..

Synthesis of aromatic ketones - ResearchGate

Palladium‐Catalyzed Synthesis of Aromatic Ketones …

Directive C-C bonds formation via aromatic C-H bond activation has attracted much attention as a facile synthetic route to alkyl aromatic compounds. Solid oxide catalysts which enable selective addition of C-H bonds of aromatic ketones to alkenes via C-H bond activation to selectively produce alkyl-aromatic compounds were developed. For example, the reaction of alfa-tetralone with triethoxyvinylsilane to afford desired the desired adduct in 99% yield.

AROMATIC COPOLYESTER-SULPHONE KETONES AND SYNTHESIS …

AB - On the basis of fundamental studies on oxidative addition of carboxylic anhydrides to zerovalent palladium complexes to yield acyl(carboxylato)bis(tertiary phosphine)palladium(II) complexes and their reactions with organoboronic acids to yield ketones, a novel catalytic process has been developed. This converts carboxylic anhydrides and organoboron compounds into ketones catalyzed by palladium complexes under mild conditions. The process provides a general, versatile, synthetic method to produce various symmetrical and unsymmetrical ketones with aromatic, aliphatic, and heterocyclic groups. The catalytic cycle is proposed to comprise (a) oxidative addition of a carboxylic anhydride to produce an acyl(carboxylato)palladium intermediate, (b) transmetallation with an organoboron compound to give an acyl(organo)palladium intermediate, and (c) its reductive elimination to yield a ketone. Not only homogeneous catalyst systems but also heterogeneous systems were found to give ketones under mild conditions.

Reductive Amination of Aldehydes and Ketones with …

reduction (NO2 to NH2), oxidation (CH3 to COOH), diazonium chemistry (NH2 N2+ Ar-X). In aromatic chemistry CCBFR revolve around:With aliphatic acyclic and cyclic systems – the process is not always as straightforward – need to consider a greater array of CCBFR’s and FGI’s.We shall discuss possible synthesis later, but we will concentrate on CCBFR in aliphatic systems.Review and extend CCBFR from 1C1Y, in particular:
Aldol and Claisen condensations
Alkylation of -keto esters (RCHOCH2CO2R’)
Grignard reactions And illustrate their use in synthesis. There are several ways of doing this. We shall consider the following: Note


(Not a typical substitution mechanism!) In the main we will be looking at ionic reactions.In CCBFR the carbonyl group is very importantAlso in CCBFR, organometallic compounds are important.e.g.

Aerobic Copper-Catalyzed Organic Reactions - …

N2 - Aromatic aldehydes are smoothly converted into the corresponding acylals in good yields in the presence of 0.10 mol% Bi(OTf)3·xH2O. Ketones are not affected under the reaction conditions. The highly catalytic nature of bismuth triflate and the fact that it is relatively non-toxic, easy to handle and insensitive to small amounts of air and moisture makes this procedure especially attractive for large-scale synthesis.

GB2102420A - Preparation of aromatic ketones - …

Aromatic aldehydes are smoothly converted into the corresponding acylals in good yields in the presence of 0.10 mol% Bi(OTf)3·xH2O. Ketones are not affected under the reaction conditions. The highly catalytic nature of bismuth triflate and the fact that it is relatively non-toxic, easy to handle and insensitive to small amounts of air and moisture makes this procedure especially attractive for large-scale synthesis.