Synthesis of unsaturated esters, including t-alkyl esters, by the palladium-catalyzed carbonylation of alkynes in the presence of alcohols and 1,4-bis(diphenylphosphino)butane

Ligand-Controlled Regiodivergent Alkoxycarbonylation of Trifluoromethylthiolated Internal Alkynes

Controlling the regioselectivity for the alkoxycarbonylation of unsymmetric internal alkynes is challenging. Herein, a palladium-catalyzed ligand-controlled regiodivergent alkoxycarbonylation of internal trifluoromethylthiolated alkynes was achieved. A series of α- or β-SCF3 acrylates from the same trifluoromethylthiolated alkyne were obtained with moderate to high yield and regioselectivity.

Room-temperature Pd-catalyzed methoxycarbonylation of terminal alkynes with high branched selectivity enabled by bisphosphine-picolinamide ligand

We report the room-temperature Pd-catalyzed methoxy-carbonylation with high branched selectivity using a new class of bisphosphine-picolinamide ligands. Systematic optimization of ligand structures and reaction conditions revealed the significance of both the picolinamide and bisphosphine groups in the ligand backbone. This strategic design of ligand was leveraged to deliver various α-substituted acrylates in good to excellent yields.

State-of-the-art palladium-catalyzed alkoxycarbonylations

State-of-the-art Pd-catalyzed alkoxycarbonylation: catalyst development and applications.

A direct synthesis of carboxylic acids via platinum-catalysed hydroxycarbonylation of olefins

A selective platinum-catalysed hydroxycarbonylation of aliphatic olefins has been achieved.

Synthesis of α,β-unsaturated carbonyl compounds by carbonylation reactions

Carbonylation reactions represent one of the most important tool box for the synthesis of α,β-unsaturated carbonyl compounds which are key building blocks in organic chemistry. This paper summarizes the most important advances in this field.

Palladium-catalyzed carbonylations of highly substituted olefins using CO-surrogates

CO surrogate chemistry: General protocols for alkoxycarbonylations of highly substituted olefins with paraformaldehyde and methyl formate are reported, allowing the performance of carbonylation reactions in all labs and for all kinds of substrates.

Alkoxycarbonylation of α,β-unsaturated amides catalyzed by palladium(ii) complexes: a DFT study of the mechanism

Two mechanisms, hydride and alkoxy, were proposed for the alkoxycarbonylation of α,β-unsaturated amides. These are studied with the use of DFT computations.

Chelation-assisted carbonylation reactions catalyzed by Rh and Ru complexes

This account reviews chelation-assisted carbonylation reactions catalyzed by late transition metals. New carbonylation reactions are achieved with these catalysts in the presence of pyridin-2-ylmethanol and pyridin-2-ylmethylamine. The reactions involve activation of O-H and N-H bonds, coordination of the pyridine nitrogen to Rh being essential for the reaction to proceed. In addition, a new type of carbonylation of the ortho C-H bonds in aromatic amides in which the pyridin-2-ylmethylamino moiety functions as a bidentate directing group, is demonstrated. In this reaction, a dinuclear ruthenium complex was isolated from a stoichiometric reaction of amide and Ru3(CO)12, in which amide binds to one Ru atom in the expected N,N fashion and the carbonyl oxygen binds to the other Ru atom as an O-donor. These studies indicate that chelation methodology is useful for new types of carbonylation reaction, which cannot be achieved by non-chelation systems.