Oxidative C–C/P–H cross-coupling is achieved via Pd-catalyzed decarbonylative cross-coupling of aroylhydrazides with P(O)H compounds. The unique cooperative reaction system, especially the Brønsted acid and bidentate phosphine ligand, allows the selective activation of the inert C–C bond and the suppression of the undesired oxidation and coordination of >P(O)–H compounds, leading to a general oxidative
氧化的C / C / P-H交叉偶联是通过Pd催化的酰肼与P(O)H化合物的脱羰交叉偶联而实现的。独特的协同反应系统,特别是布朗斯台德酸和双齿膦配体,可以选择性活化惰性碳键,并抑制> P(O)–H化合物的不希望的氧化和配位,从而导致一般的氧化反应从容易获得的底物中合成芳基磷化合物。
Nickel-catalyzed C–P cross-coupling reactions of aryl iodides with H-phosphinates
Synthesis of aryl phosphinates was achieved through cross-coupling reactions of aryl iodides with H-phosphinates catalyzed by nickel under mild conditions. The method was applicable to various aryl iodides and H-phosphinates having defined stereochemistry at the phosphorus atom.
As part of our studies on copper‐catalyzed arylation of nucleophiles, we report on Michaelis–Arbuzov reactions with a novel catalytic system, featuring a copper(I) salt as precatalyst without any additional ligand. This procedure is an interesting alternative to the use of expensive and toxic transition metals (nickel, palladium) traditionally used as catalysts in Michaelis–Arbuzov reactions. Our approach