Preparation method of Pd(II)-NHC catalysts and applications of Pd(II)-NHC catalysts in Suzuki-Miyaura reactions

The invention discloses a preparation method of Pd(II)-NHC catalysts and applications of the Pd(II)-NHC catalysts in Suzuki-Miyaura reactions, relates to a catalyst preparation method and applicationsof the catalysts in reactions, and discloses a preparation method of Pd(II)-N-heterocyclic carbene (...

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Hauptverfasser:	DENG YAN, DING FU, ZHAO MAN, YAN PINGXUAN, SUN YAGUANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention discloses a preparation method of Pd(II)-NHC catalysts and applications of the Pd(II)-NHC catalysts in Suzuki-Miyaura reactions, relates to a catalyst preparation method and applicationsof the catalysts in reactions, and discloses a preparation method of Pd(II)-N-heterocyclic carbene (Pd(II)-NHC) catalysts and applications of the Pd(II)-N-heterocyclic carbene (Pd(II)-NHC) catalystsin Suzuki-Miyaur reactions. According to the two Pd(II)-NHC catalysts of the invention, K2PdCl4 is used as a precursor, ligands H2L1 and H2L2 are respectively obtained by carrying out a condensation reaction on bis(1-imidazolyl)methane and N-(2-chlorphenyl)acetamide and on bis(1-imidazolyl)methane and N-(2-chloro-(2,6-diisopropyl)acetamide, and the catalysts Pd-(H2L1) and Pd-(H2L2) are prepared through a step-by-step synthesis method. The two novel catalysts are clear in structure and stable to water and air; and in a Suzuki-Miyaura reaction, the reaction conditions are mild, the post-treatment is simple, and the catal