Iron-Catalyzed Cross-Dehydrogenative Coupling Esterification of Unactive C(sp<sup>3</sup>)–H Bonds with Carboxylic Acids for the Synthesis of α-Acyloxy Ethers
作者:Jincan Zhao、Hong Fang、Wei Zhou、Jianlin Han、Yi Pan
DOI:10.1021/jo500192h
日期:2014.5.2
An iron-catalyzed oxidative esterification reaction between unactivated C(sp3)–H bonds from symmetric and asymmetric ethers and carboxylic acids using di-tert-butyl peroxide (DTBP) as the oxidant via a crossdehydrogenativecoupling (CDC) reaction was established, which tolerates a wide range of cyclic ether substrates to react with aromatic acids and phenylacetic acid, providing an efficient method
Ultrasound-promoted synthesis of a copper–iron-based catalyst for the microwave-assisted acyloxylation of 1,4-dioxane and cyclohexene
作者:Pablo Macías-Benítez、Alfonso Sierra-Padilla、M. Pilar Yeste、José María Palacios-Santander、Laura Cubillana-Aguilera、José M. Gatica、Hilario Vidal、Francisco M. Guerra、F. Javier Moreno-Dorado
DOI:10.1039/d2ob02117j
日期:——
A copper–iron-based catalyst has been prepared by a low-temperature co-precipitation and sonication method. The use of high-energy ultrasound reduces the time required for the preparation process from one workweek to one day with respect to the catalysts obtained by conventional coprecipitation and thermal treatment methods. The resulting material has been characterized at compositional, textural, structural