Copper-catalyzed oxidative esterification of unactivated C(sp<sup>3</sup>)–H bonds with carboxylic acids via cross dehydrogenative coupling
作者:Jiadi Zhou、Can Jin、Xiaohan Li、Weike Su
DOI:10.1039/c4ra14586k
日期:——
An effective copper-catalyzed esterification of unactivated (non-benzylic and allylic) C(sp3)–Hbonds of hydrocarbons with Selectfluor as an oxidant has been developed. This reaction could provide a direct, new and useful strategy for the synthesis of esters and alkyl alcohols by ester hydrolysis.
An Efficient Method for the Preparation of Tertiary Esters by Palladium-Catalyzed Alkoxycarbonylation of Aryl Bromides
作者:Zhuo Xin、Thomas M. Gøgsig、Anders T. Lindhardt、Troels Skrydstrup
DOI:10.1021/ol203057w
日期:2012.1.6
The palladium-catalyzed alkoxycarbonylation of aryl bromides is described for the efficient preparation of tertiary esters. The protocol proved compatible with a wide variety of functionallzed (hetero)aromatic bromides, as well as several different sterically hindered tertiary alcohols, affording the alkoxycarbonylated products in high yields. Finally, the formation of aromatic trityl esters is discussed.