Allylic Oxidation of Alkenes Catalyzed by a Copper–Aluminum Mixed Oxide
作者:Ana Leticia García-Cabeza、Rubén Marín-Barrios、F. Javier Moreno-Dorado、María J. Ortega、Guillermo M. Massanet、Francisco M. Guerra
DOI:10.1021/ol500198c
日期:2014.3.21
strategy for the allylicoxidation of cyclic alkenes with a copper–aluminum mixedoxide as catalyst is presented. The reaction involves the treatment of an alkene with a carboxylic acid employing tert-butyl hydroperoxide as the oxidant. In all cases, the corresponding allylic esters are obtained. When l-proline is employed, the allylic alcohol or ketone is obtained. The oxidation of cyclohexene and
Tetrabutylammonium Iodide Catalyzed Synthesis of Allylic Ester with <i>tert</i>-Butyl Hydroperoxide as an Oxidant
作者:Erbo Shi、Ying Shao、Shulin Chen、Huayou Hu、Zhaojun Liu、Jie Zhang、Xiaobing Wan
DOI:10.1021/ol3013606
日期:2012.7.6
A metal-free C H oxidation for the construction of allylic esters has been developed. The use of a commercially available and inexpensive catalyst and oxidant, and readily available starting materials, coupled with the operational simplicity of the reaction, renders the methodology a useful alternative to other approaches typically employed in the synthesis of allylic esters.
Catalytic enantioselective allylic oxidation of olefins with copper(I) catalysts and new perester oxidants
作者:Merritt B. Andrus、Xi Chen
DOI:10.1016/s0040-4020(97)01011-9
日期:1997.12
Asymmetric allylic oxidation of cyclic olefins using a catalytic amount of copper(I) bisoxazoline complexes and new peresters was investigated to give allylic benzoate esters in high selectivity (similar to 80%ee), yield (70-80%), and at reasonable rates (5-7 d) at -20 degrees C in acetonitrile. Cyclohexene reacted with pam-chloro tert-butylperbenzoate and 15 mol% diphenylbisoxazoline-copper(I) hexafluorophosphate to give benzoate product in 83% yield and 75% ee. (C) 1997 Elsevier Science Ltd.
Copper porphyrin as efficient catalysts for esterification of allyl sp3 C H bond with carboxylic acid
作者:Ming-Feng Xiong、Atif Ali、Waseem Akram、Hao Zhang、Li-Ping Si、Hai-Yang Liu
DOI:10.1016/j.catcom.2019.04.001
日期:2019.5
We described that copper 5,10,15,20-tetrakis (ethoxycarbonyl)porphyrin (TECP) catalyzed oxidative cross dehydrogenative coupling of allyl sp3 CH bond with acid for the synthesis of allyl esters in a homogeneous system. This reaction proceeded with broad substrate scope and good functional group tolerance. In the gram-level test, the turnover number (TON) reached to 8100 at 0.01 mol% catalyst loading
我们描述了5,10,15,20-四(乙氧基羰基)卟啉铜(TECP)催化烯丙基sp 3 C H键与酸的氧化交叉脱氢偶联,用于在均相系统中合成烯丙基酯。该反应在宽的底物范围和良好的官能团耐受性下进行。在克级测试中,在催化剂负载量为0.01 mol%时,周转率(TON)达到8100,产率为81%。