Copper-catalyzed highly efficient ester formation from carboxylic acids/esters and formates
作者:Jun Liu、Changdong Shao、Yanghui Zhang、Guangfa Shi、Shulei Pan
DOI:10.1039/c4ob00193a
日期:——
A highly efficient copper-catalyzed protocol for the synthesis of esters has been developed from formates. This protocol is applicable to reactions with either esters or acids as the substrates, and shows broad substrate scopes and high yields.
Solvent- and Metal-free Oxidative Esterification of Aromatic Aldehydes Using Urea-2,2-dihydroperoxypropane as a New Solid Oxidant
作者:Kaveh Khosravi、Kobra Khalaji、Shirin Naserifar
DOI:10.1002/jccs.201600777
日期:2017.3
Urea‐2,2‐dihydroperoxypropane as a noble and solid gem‐dihydroperoxide derivative was used to transform various aromaticaldehydes to their corresponding benzoate derivatives in the presence of HBr under mild conditions at room temperature in high yields and short reaction times.
The esterification of variety of acidchlorides with alcohols in the presence of zinc is described. The easy formation of t-butyl and pivaloyl esters are the additional importance of this procedure.
描述了在锌存在下各种酰氯与醇的酯化反应。叔丁酯和新戊酸酯的容易形成是该程序的额外重要性。
The First General and Selective Palladium(II)-Catalyzed Alkoxycarbonylation of Arylboronates: Interplay among Benzoquinone-Ligated Palladium(0) Complex, Organoboron, and Alcohol Solvent
作者:Yoshihiko Yamamoto
DOI:10.1002/adsc.200900836
日期:2010.2.15
Methoxycarbonylation of aryl- and alkenylboron compounds was performed using the palladium(II) acetate/triphenylphosphine [Pd(OAc)2/PPh3] catalyst with p-benzoquinone as a stoichiometric oxidant in methanol at ambient temperature to obtain the corresponding methyl esters in good yields. A wide variety of functional groups including various carbonyl functionalities, nitrile, nitro, sulfone, and unprotected
Procatalysts, catalyst systems, and use in olefin polymerization
申请人:——
公开号:US20010025005A1
公开(公告)日:2001-09-27
There are described solid procatalysts, catalyst systems incorporating the solid procatalysts, and the use of the catalyst systems in olefin polymerization and interpolymerization.