Palladium-Catalyzed Carbonylative Synthesis of Benzoxazinones from N-(o-Bromoaryl)amides Using Paraformaldehyde as the Carbonyl Source

The one-pot synthesis of quinolines via Co(iii)-catalyzed C–H activation/carbonylation/cyclization of anilines

A new and versatile Co(iii)-catalyzed C–H activation/carbonylation/cyclization cascade reaction has been disclosed.

Selective Oxidative Decarbonylative Cleavage of Unstrained C(sp(3))-C(sp(2)) Bond: Synthesis of Substituted Benzoxazinones

A transition metal (TM)-free practical synthesis of biologically relevant benzoxazinones has been established via a selective oxidative decarbonylative cleavage of an unstrained C(sp(3))-C(sp(2)) bond employing iodine, sodium bicarbonate, and (t)butyl hydroperoxide in DMSO at 95 °C. Control experiments and Density Functional Theory (DFT) calculations suggest that the reaction involves a [1,5]H shift and extrusion of CO gas as the key steps. The extrusion of CO has also been established using PMA-PdCl2.

Palladium-catalyzed alkoxycarbonylation of aryl halides with phenols employing formic acid as the CO source

An efficient palladium-catalyzed alkoxycarbonylation of aryl halides with phenols has been developed. Various aryl benzoates have been isolated in good to excellent yields with formic acid as the CO source.

Palladium-catalyzed paraformaldehyde insertion: a three-component synthesis of benzofurans

2-Aroylbenzofurans were prepared from 2-bromophenols, phenacyl bromides and paraformaldehyde under palladium catalysis conditions.

Pd-catalyzed aminocarbonylation of alkynes with amines using Co2(CO)8 as a carbonyl source

A facile protocol for aminocarbonylation of alkynes with amines at room temperature was developed using a metal carbonyl source.

Recent advances in the transition metal catalyzed carbonylation of alkynes, arenes and aryl halides using CO surrogates

Transition metal catalyzed carbonylation reactions using carbon monoxide as the C-1 source have occupied an all important position in catalysis which is subsequently related to organic synthesis and industrial synthesis of molecules.

Microwave-assisted palladium-catalysed isonitrile insertion in 2-bromophenylureas for efficient synthesis of 4-substituted imino 4H-benzo[d][1,3]oxazin-2-amines

The palladium-catalysed isonitrile insertion in 2-bromophenylureas leads to the formation of 4-substituted imino 4H-benzo[d][1,3]oxazin-2-amines via C–O cross coupling reaction of the intermediate imidoylpalladium species.

Concise synthesis of cyclic carbonyl compounds from haloarenes using phenyl formate as the carbonyl source

Carbonylative cyclization of haloarenes bearing nucleophilic moieties under Pd catalysis has been developed as a general, user-friendly method for access to various cyclic carbonyl compounds.