Remote sp3 C–H Amination of Alkenes with Nitroarenes
作者:Jichao Xiao、Yuli He、Feng Ye、Shaolin Zhu
DOI:10.1016/j.chempr.2018.04.008
日期:2018.7
Direct installation of a functional group at remote, unfunctionalized sites in an alkyl chain is a synthetically valuable but rarely reported process. The remote relay hydroarylamination of distal and proximal olefins, and of olefin isomeric mixtures, has been achieved through NiH-catalyzed alkene isomerization and sequential reductive hydroarylamination with nitroarenes. This provides an attractive
Ligand‐Enabled Nickel‐Catalyzed Redox‐Relay Migratory Hydroarylation of Alkenes with Arylborons
作者:Yuli He、Chuang Liu、Lei Yu、Shaolin Zhu
DOI:10.1002/anie.202001742
日期:2020.6.2
A redox-relay migratory hydroarylation of isomeric mixtures of olefins with arylboronic acids catalyzed by nickel complexes bearing diamine ligands is described. A range of structurally diverse 1,1-diarylalkanes, including those containing a 1,1-diarylated quaternary carbon, were obtained in excellent yields and with high regioselectivity. Preliminary experimental evidence supports the proposed non-dissociated
Ring-Rearrangement Metathesis (RRM) Mediated by Ruthenium-Indenylidene Complexes
作者:Hervé Clavier、Julie Broggi、Steven P. Nolan
DOI:10.1002/ejoc.200901316
日期:2010.2
Several ruthenium-indenylidenecomplexes bearing N-heterocyclic carbenes (NHCs) and phosphanes have been investigated for the ring rearrangement of cyclic compounds by alkene metathesis. These catalysts were found to promote efficiently such domino reactions, especially sterically hindered NHC-containing complexes. Moreover, indenylidene-type catalysts were compared to benzylidene- and Hoveyda-type
[4 + 3] Cycloaddition of Cyclopropanone Hemiacetals<sup>1</sup>
作者:Sung Yun Cho、Hyoung Ik Lee、Jin Kun Cha
DOI:10.1021/ol016354s
日期:2001.9.1
[reaction: see text]. Intermolecular and intramolecular [4 + 3] cycloaddition reactions of readily available cyclopropanonehemiacetals with furans are described.
Catalytic Conjunctive Coupling of Carboxylic Acid Derivatives with 9‐BBN‐Derived Ate Complexes
作者:Chunyin Law、Yan Meng、Seung Moh Koo、James P. Morken
DOI:10.1002/anie.201901927
日期:2019.5.13
β-Boryl carbonyl compounds are produced by a Ni-catalyzed cross-coupling of vinylboron "ate" complexes and acid chloride or acid anhydride electrophiles. The reactions are efficient, being complete in as little as two minutes, and can be applied to a broad range of substrates.