We designed and synthesized ligand L1 with C3 synametry in the paper, through self-assembly with silver nitrate obtained complexes 1 of silver double helix with three nuclear, that were used to characterize its struct...We designed and synthesized ligand L1 with C3 synametry in the paper, through self-assembly with silver nitrate obtained complexes 1 of silver double helix with three nuclear, that were used to characterize its structure by NMR and mass spectrometry, the complex silver as the catalytic sites, and the ligand L of hydrogen on the nitrogen fell microphone has certain basic, that can be used as an auxiliary Methylene dehydrogenation of Isopropyl methyl cyanoacetate, thereby accelerating the reaction. Further, the introduction of a chiral ligand to give complexes 2, to achieve an asymmetric aldol reaction of methyl isocyanoacetate.展开更多
Transition metal-catalyzed decarboxylative cross-coupling reactions have recently emerged as a new and important category of organic transformations that find versatile applications in the construction of carbon-carbo...Transition metal-catalyzed decarboxylative cross-coupling reactions have recently emerged as a new and important category of organic transformations that find versatile applications in the construction of carbon-carbon and carbon-heteroatom bonds. The use of relatively cheap and stable carboxylic acids to replace organometallic reagents enables the decarboxylative cross-coupling reactions to proceed with good selectivities and functional group tolerance. In the present review we summarize the various types of decarboxylative cross-coupling reactions catalyzed by different transition metal complexes. The scope and applications of these reactions are described. The challenges and opportunities in the field are discussed.展开更多
In the past thirty years,transition metal catalyzed silylation of inert C–H bonds has attracted intensive attention due to the importance and wide use of organosilicon compounds.In this review,the silylation reaction...In the past thirty years,transition metal catalyzed silylation of inert C–H bonds has attracted intensive attention due to the importance and wide use of organosilicon compounds.In this review,the silylation reactions of inert C–H bonds catalyzed by transition metal complexes of Ir,Rh,Ru,Pt,Pd,Ni,and Sc,and the strategies utilized to access the site-selective C–H silylation products have been summarized.Furthermore,the mechanisms of C–H silylation reactions have been discussed briefly.展开更多
文摘We designed and synthesized ligand L1 with C3 synametry in the paper, through self-assembly with silver nitrate obtained complexes 1 of silver double helix with three nuclear, that were used to characterize its structure by NMR and mass spectrometry, the complex silver as the catalytic sites, and the ligand L of hydrogen on the nitrogen fell microphone has certain basic, that can be used as an auxiliary Methylene dehydrogenation of Isopropyl methyl cyanoacetate, thereby accelerating the reaction. Further, the introduction of a chiral ligand to give complexes 2, to achieve an asymmetric aldol reaction of methyl isocyanoacetate.
文摘Transition metal-catalyzed decarboxylative cross-coupling reactions have recently emerged as a new and important category of organic transformations that find versatile applications in the construction of carbon-carbon and carbon-heteroatom bonds. The use of relatively cheap and stable carboxylic acids to replace organometallic reagents enables the decarboxylative cross-coupling reactions to proceed with good selectivities and functional group tolerance. In the present review we summarize the various types of decarboxylative cross-coupling reactions catalyzed by different transition metal complexes. The scope and applications of these reactions are described. The challenges and opportunities in the field are discussed.
基金financially supported by the National Natural Science Foundation of China(21322203,21272238,21472194)the National Basic Research Program of China(2012CB821600)
文摘In the past thirty years,transition metal catalyzed silylation of inert C–H bonds has attracted intensive attention due to the importance and wide use of organosilicon compounds.In this review,the silylation reactions of inert C–H bonds catalyzed by transition metal complexes of Ir,Rh,Ru,Pt,Pd,Ni,and Sc,and the strategies utilized to access the site-selective C–H silylation products have been summarized.Furthermore,the mechanisms of C–H silylation reactions have been discussed briefly.
