cooperative C–C double bond and C–C triple bond cleavage processes are discussed in association with transition metal-catalyzed C–H bond activation. Rece... CH Jun,JW Park - 《Topics in Current Chemistry》 被引量: 93发表: 2014年 Transition-metal-catalyzed additions of C-H bonds to C-...
The alkynes HC{triple bond}CCMe{sub 2}NHCOR react with M{sub 3}(CO){sub 12} (M = Ru or Os) giving, upon oxidative addition, the expected hydrides ({mu}-H)M{sub 3}(CO){sub 9}({mu}{sub 3}-{eta}{sup 2}-C{triple bond}CCMe{sub 2}NHCOR) and the unprecedented butterfly cl...
The molecules were oriented in the field so that one C−H bond was aligned with the field in the direction appropriate for a stabilizing polarization of that bond. Although the C−H bonds of acetylene and HCN lengthen as the field increases, that of methane shortens until the field ...
C-H Bond Functionalization 4.2 Functionalization of the Aldehyde C-H Bond 4.3 Tandem C-H Activation/Enyne-Cyclization Reactions 4.4 Functionalization of spC-... AA Kulkarni,O Daugulis - 《Cheminform》 被引量: 334发表: 2010年 Phenylborylene: Direct Spectroscopic Characterization in Inert Gas Matrices...
Site-specific allylic C-H bond functionalization with a copper-bound N-centred radical Methods for selective C-H bond functionalization have provided chemists... Jiayuan,Zhang,Zhihan,... 被引量: 0发表: 0年 Homolytic dissociation of 1-substituted cyclohexa-2,5-diene-1-carboxylic acids: an EPR ...
C–H bond activation reactions by TpMe2Ir(III) centres. Generation of Fischer-type carbenes and development of a catalytic system for H/D exchange C-H Bond Activation Reactions by TpMe2lr(III) Centres. Generation of Fischer-Type Carbenes and Development of a Catalytic System for H/D Exchange...
C-H bond activation by air-stable [(diimine)M(II)(mu2-OH)]2(2+) dimers (M = Pd, Pt) PLATINUM(II) COMPLEXESMETAL-COMPLEXESPALLADIUM(II)DEHYDROGENATIONCYCLOHEXENEOXIDATIONMECHANISMAir- and water-tolerant CH activation is observed in reactions of [(... TJ Williams,AJM Caffyn,N Hazari,......
Recent computational studies of C-H bond activation at late transition metal systems are discussed and processes where lone pair assistance via heteroatom co-ligands or carboxylates are highlighted as a particularly promising means of cleaving C-H bonds. The term 'ambiphilic metal ligand activation'...
In the presence of chlorine extractors, the rupture of the Os−Cl bond of Os(η5-C5H5)Cl(PiPr3)2 is favored. The resulting metal fragment activates C(sp3)−H, C(sp2)−H, C(sp)−H, and P−H bonds. The C(sp)−H activation of terminal alkynes is the key step to the ...
C—C versus C—H Bond Oxidative Addition in PCX (X = P,N,O) Ligand Systems: Facility, Mechanism, and Control Rybtchinski B,Milstein D.C-C versus C-H bond oxidative addition in PCX (X=P, N, O) ligand systems:facility, mechanism and control. Acs Symposium ... Boris,Rybtchinski,...