Pd(II)-Catalyzed Direct γ-C(sp<sup>3</sup>)-H Arylation between Free β<sup>2</sup>-Amino Esters and β<sup>3</sup>-Amino Esters and Aryl Iodides Using a Catalytic Transient Directing Group
作者:Zhaohui Wang、Yangjie Fu、Qiyu Zhang、Hong Liu、Jiang Wang
DOI:10.1021/acs.joc.0c00115
日期:2020.6.19
Pd(II)-catalyzed direct γ-C(sp3)-H arylation coupling with free β2-amino esters and β3-amino esters using a commercially available catalytic transientdirectinggroup has been developed. This approach features high efficiency, broad substrate tolerance, easily accessible starting materials, and mild reaction conditions.
Site-Selective γ-C(sp<sup>3</sup>)−H and γ-C(sp<sup>2</sup>)−H Arylation of Free Amino Esters Promoted by a Catalytic Transient Directing Group
作者:Hua Lin、Chao Wang、Thomas D. Bannister、Theodore M. Kamenecka
DOI:10.1002/chem.201802465
日期:2018.7.5
The first selective PdII‐catalysed γ‐C(sp3)−H and γ‐C(sp2)−H arylation of free amino esters using a commercially available catalytic transient directing group. A variety of free amino esters, including α‐amino esters and β‐amino esters, amino monoesters and amino bis‐esters, are shown to react with a diverse range of simple aryl and heteroaryl iodide reagents.
The cyanide ion induced the heterolytic cleavage of the cobalt–carbon bond involved in vitamin B12 model complexes by its coordination to the central cobalt atom and enhanced the carbon-skeleton rearrangements via formation of anionic intermediates under anaerobic irradiation with the visible light.
A synthetic bilayer membrane functionalised with hydrophobic vitamin B12 as an artificial glutamate mutase
作者:Yukito Murakami、Yoshio Hisaeda、Teruhisa Ohno
DOI:10.1039/c39880000856
日期:——
Heptapropyl cobyrinate perchlorate catalysed the conversion of diethyl β-methylaspartate into diethyl glutamate in single-compartment vesicles in the presence of vanadium trichloride as a co-catalyst under aerobic irradiation conditions.