Regioselective Oxyalkylation of Vinylarenes Catalyzed by Diatomite-Supported Manganese Oxide Nanoparticles
作者:Huayin Sun、Yonghui Zhang、Fengfeng Guo、Zhenggen Zha、Zhiyong Wang
DOI:10.1021/jo2026367
日期:2012.4.6
A regioselective oxyalkylation reaction of vinylarenes with cyclic ethers was developed under the catalysis of a new heterogeneous catalyst, the diatomite-supported Mn3O4 nanoparticles (SMONP-1). The use of this heterogeneous catalyst provided a novel approach for the synthesis of alpha-carbonyled beta-alkylated aryl derivatives via a sp(3) C-H bond functionalization under mild aerobic conditions.
CuBr-Mediated Oxyalkylation of Vinylarenes under Aerobic Conditions via Cleavage of sp<sup>3</sup> C−H Bonds α to Oxygen
作者:Kai Cheng、Lehao Huang、Yuhong Zhang
DOI:10.1021/ol900947d
日期:2009.7.2
A novel difunctionalization reaction of vinylarenes with cyclic ethers has been developed by copper catalysis via direct activation of alpha-sp(3) C-H bonds of oxygen in the presence of 1-1.2 equiv of TBHP under mild aerobic conditions. The reaction shows excellent regioselectivities and good functional group tolerance to give the oxyalkylated products of vinylarenes.
Kotschetkow et al., Zhurnal Obshchei Khimii, 1959, vol. 29, p. 2570,2573; engl. Ausg. S. 2533, 2536