King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

Waseem Mansour

Bassam El Ali

Mohammed Fettouhi

This disclosure relates to N-substituted Pd(II)-N-heterocyclic carbene-pyridine complexes, methods of preparing the complexes, and methods of using the complexes in Sonogashira coupling reactions.

Synthesis of alkynones via carbonylative Sonogashira coupling reactions catalyzed by Pd(II)-N-Heterocyclic carbene-pyridine complexes

Palladium catalysts, methods of synthesizing palladium-carbene catalysts, and methods of producing chromones and aurones using palladium-N-heterocyclic carbene (NHC) catalysts are provided. In some implementations, the palladium catalysts include a bridged palladium catalyst with distorted square planar geometry around the center palladium atom. The catalysts can be used in cyclocarbonylative Sonogashira cross-coupling reactions to produce chromones and aurones at a high yield. The selectivity of the catalysts can be adjusted by adjusting reaction conditions.

Selective cyclocarbonylative coupling of 2-iodophenols with terminal alkynes catalyzed by bridged bis(NHC)Pd(II)Brcatalysts

This disclosure relates to bridged bis(N-heterocyclic carbene)palladium(II) complexes, methods of preparing the complexes, and methods of using the complexes in Suzuki-Miyaura coupling reactions.

Synthesis of biaryl ketones and biaryl diketones via carbonylative Suzuki-Miyaura coupling reactions catalyzed by bridged bis(N-heterocyclic carbene)palladium(II) catalysts

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Dhahran, Saudi Arabia

Waseem Mansour