Colorants News

Copper Catalyzed

Copper Catalyzed Ullmann coupling reaction Reactions in which iodoaromatics are coupled to themselves to obtain diaryl compounds catalyzed by Cu, Ni o…

Alkynes decomposition reaction

Alkynes decomposition reaction Ring closure recombination of alkynes The metal-catalyzed breakage and reorganization of the carbon-carbon triple bond …

Common catalysts

Common catalysts Commonly used reagents—-Palladium acetate Commonly used catalyst—-Dichloro[1,2-bis(diphenylphosphino)ethane]palladium Com…

Carbonylative Cross Coupling

Carbonylative Cross Coupling Carbonylative cross coupling reaction utilizes the ability of carbon monoxide to insert carbon-metal bonds to produce est…

Stille coupling reactions

Stille coupling reactions The Stille coupling reaction is a palladium-catalyzed CC-bond coupling of an organotin reagent and a halogenated substance o…

Summary of common metal-catalyzed reactions

Summary of common metal-catalyzed reactions Metal-catalyzed coupling reactions are common in organic synthesis for the formation of carbon-carbon and …

How do ligands accelerate catalytic reactions?

How do ligands accelerate catalytic reactions? 1.Preface: More than a decade has passed since the discovery of the titanium-catalyzed asymmetric allyl…

Commonly used reagents —- Triphenylphosphine

Commonly used reagents —- Triphenylphosphine 【English name】 Triphenylphine Molecular Formula] C18H15P Molecular weight] 262.29 【CA Login Number】…

Shanghai Qiguang Group

Founded in 1988, as the world's leading supplier of polyurethane catalysts, we have continuously innovated in the field of polyurethane, serving the aerospace, automotive, pharmaceutical, construction and home furnishing industries for more than 30 years.
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