Unexpected C(carbene)-X (X: I, Br, Cl) Reductive Elimination From N-Heterocyclic Carbene Copper Halide Complexes Under Oxidative Conditions [0.03%]
出人意料的氧化条件下N-杂环卡宾铜卤化物配合物中C(芳碳烯)-X(X：I，Br，Cl)还原消除反应
Bo-Lin Lin,Peng Kang,T Daniel P Stack
Bo-Lin Lin
The non-innocent behaviors of NHC ligands have attracted wide attention due to their important implications for catalyst designs and reaction mechanisms. Herein, we report facile C(carbene)-halogen reductive eliminations from NHC copper hal...
Novel Substitutions of 1-Alkoxy- and 1-Arylsulfonyloxy-η-Allylmolybdenum Complexes. A Case for η-Alkenyl Carbene Complexes as Intermediates [0.03%]
关于1-烷氧基和1-芳基亚磺酰氧基-η-烯丙基钼配合物的新取代反应。支持η-烯基卡宾配合物作为中间体的一个例子
Thomas C Coombs,Wenwei Huang,Ethel C Garnier-Amblard et al.
Thomas C Coombs et al.
A series of acyclic and cyclic 1-alkoxy- and 1-arylsulfonyloxy-substituted TpMo(CO)(2)(η(3)-allyl) complexes was synthesized and characterized, and exchange of the oxygenated substituent was investigated under a variety of reaction conditi...
Synthesis, Characterization, and Reactions of Isolable (β-Diketiminato)Nb(III) Imido Complexes [0.03%]
可分离的(β-二酮亚胺)铌(III)酰基配合物的合成、表征和反应性研究
Neil C Tomson,John Arnold,Robert G Bergman
Neil C Tomson
We have investigated both the chemical reduction of (BDI)Nb(V) imido complexes (BDI = HC[C(Me)NAr](2); Ar = 2,6-(i)Pr(2)-C(6)H(3)) to the formal Nb(III) oxidation state and the ability of these Nb(III) complexes to behave as two-electron re...
Pyridyl-Cyclopentadiene Re(CO)(2) Complexes as a Compact Core Systems for SPECT Ligand Development [0.03%]
基于吡啶环戊二烯基Re(CO)₂核心单元的SPECT显像剂研究
Nathan C Ackroyd,John A Katzenellenbogen
Nathan C Ackroyd
An η(1) η(5)-rhenium complex has been prepared, starting from a CpRe(CO)(3) complex substituted with a pendant aromatic amine. This unique complex has potential application as a surrogate for a technetium-99m complex, a common radioisotop...
Synthesis of Ruthenium Boryl Analogues of the Shvo Metal-Ligand Bifunctional Catalyst [0.03%]
舒沃金属-配体双功能催化剂的类硼类似物的合成
Liza Koren-Selfridge,Ian P Query,Joel A Hanson et al.
Liza Koren-Selfridge et al.
Metal boryl complexes have received significant attention in the literature in recent years due to their role as key intermediates in a number of metal-catalyzed borylation reactions. The ligand scaffold is known to have a significant impac...
Chain- and Regioselective Ethylene and Styrene Dimerization Reactions Catalyzed by a Well-Defined Cationic Ruthenium-Hydride Complex: New Insights on the Styrene Dimerization Mechanism [0.03%]
由明确定义的钌-氢配合物催化的乙烯和苯乙烯选择性二聚化反应：苯乙烯二聚化机理的新见解
Do W Lee,Chae S Yi
Do W Lee
The cationic ruthenium-hydride complex [(eta(6)-C(6)H(6))(PCy(3))(CO)RuH](+)BF(4) (-) was found to be a highly regioselective catalyst for the ethylene dimerization reaction to give 2-butene products (TOF = 1910 h(-1), >95% selectivity for ...
Halo, Alkyl, Aryl, and Bis(imido) Complexes of Niobium Supported by the beta-Diketiminato Ligand [0.03%]
由β-二酮亚胺配体支撑的铌的卤化物、烷基、芳基和双(亚氨基)配合物
Neil C Tomson,John Arnold,Robert G Bergman
Neil C Tomson
Synthesis of the complex (BDI)Nb(N(t)Bu)Cl(2)py (BDI = HC[C(Me)N(2,6-iPr(2)-C(6)H(3))](2)) was achieved in high yield following the treatment of Nb(N(t)Bu)Cl(3)py(2) with Li(BDI)(OEt(2)). Substitution of the chlorides for fluorides was effe...
Intermolecular Dehydrative Coupling Reaction of Arylketones with Cyclic Alkenes Catalyzed by a Well-Defined Cationic Ruthenium-Hydride Complex: A Novel Ketone Olefination Method via Vinyl C-H Bond Activation [0.03%]
催化亚胺基氢化物络合物的分子间去水化偶联反应：环烯与芳基酮偶联的新方法——通过C-H键活化实现的酮类 olefination 方法
Chae S Yi,Do W Lee
Chae S Yi
The cationic ruthenium-hydride complex [(eta(6)-C(6)H(6))(PCy(3))(CO)RuH](+)BF(4) (-) was found to be a highly effective catalyst for the intermolecular olefination reaction of arylketones with cycloalkenes. The preliminary mechanistic anal...
Palladium- and Nickel-Catalyzed Carbon-Carbon Bond Insertion Reactions with Alkylidenesilacyclopropanes [0.03%]
钯和镍催化下含亚硅基烯丙基环丙烷的碳碳键插入反应
Kay M Buchner,K A Woerpel
Kay M Buchner
Palladium and nickel catalysts promoted highly selective carbon-carbon bond insertion reactions with di-tert-butyl-alkylidenesilacyclopropanes. Pd(PPh(3))(4) was demonstrated to be the optimal catalyst, allowing for a variety of carbon-carb...
John R Bleeke,Phawit Putprasert,Todsapon Thananatthanachon et al.
John R Bleeke et al.
Treatment of aromatic nitriles with methyllithium produces N-lithiated imine reagents which, when reacted with (η(2)-cyclooctene)(Cl)Ir(PMe(3))(3), generate fused iridaazacycles via ortho-metallation. Mono-protonation of these iridaazacycl...