作者:Lijun Lu、Renyi Shi、Luyao Liu、Jingwen Yan、Fangling Lu、Aiwen Lei
DOI:10.1002/chem.201602791
日期:2016.10.4
compounds is an attractive prospect in organic synthesis. In particular, the combination of C(sp3)−H activation and oxidative carbonylation involving alkanes and CO gas is a promising and efficient method to synthesize carbonyl derivatives. However, due to the high C−H bond dissociation energy and low polarity of unactivated alkanes, the carbonylation of unactivated C(sp3)−H bonds still remains a great challenge
strategy for esterification of common amides using fluoride as a catalyst. This method shows high functional group tolerance, and notably it requires only a slight excess of the alcohol nucleophile, which is a rare case in transition‐metal‐free amide transformations. Moreover, this approach may provide a new understanding for further studies on esterification of amides and is expected to stimulate the development
Metal-free radical oxidative alkoxycarbonylation and imidation of alkanes
作者:Lijun Lu、Danyang Cheng、Yuanfeng Zhan、Renyi Shi、Chien-Wei Chiang、Aiwen Lei
DOI:10.1039/c7cc03671j
日期:——
A metal-free radical oxidative carbonylation of alkanes is demonstrated, yielding esters and imides by means of di-tert-butylperoxide as oxidant. Various alkanes, alcohols and amides were compatible in this system generating the desired carbonyl products in up to 86% yields. We proposed a plausible radical cross-coupling process based on the preliminary mechanistic studies.
Copper-Catalyzed Alkoxycarbonylation of Alkanes with Alcohols
作者:Yahui Li、Changsheng Wang、Fengxiang Zhu、Zechao Wang、Pierre H. Dixneuf、Xiao-Feng Wu
DOI:10.1002/cssc.201601587
日期:2017.4.10
Esters are important chemicals widely used in various areas, and alkoxycarbonylation represents one of the most powerful tools for their synthesis. In this communication, a new copper‐catalyzed carbonylative procedure for the synthesis of aliphatic esters from cycloalkanes and alcohols was developed. Through direct activation of the C −H bond of alkanes and with alcohols as the nucleophiles, the desired
Cobalt-Nanoparticles Catalyzed Efficient and Selective Hydrogenation of Aromatic Hydrocarbons
作者:Kathiravan Murugesan、Thirusangumurugan Senthamarai、Ahmad S. Alshammari、Rashid M. Altamimi、Carsten Kreyenschulte、Marga-Martina Pohl、Henrik Lund、Rajenahally V. Jagadeesh、Matthias Beller
DOI:10.1021/acscatal.9b02193
日期:2019.9.6
catalysts for such reactions. The specific nanoparticles were prepared by assembling cobalt-pyromellitic acid-piperazine coordination polymer on commercial silica and subsequent pyrolysis. Applying the optimal nanocatalyst, industrial bulk, substituted, and functionalized arenes as well as polycyclic aromatic hydrocarbons are selectively hydrogenated to obtain cyclohexane-based compounds under industrially