Effective oxidation of benzylic and alkane C–H bonds catalyzed by sodium o-iodobenzenesulfonate with Oxone as a terminal oxidant under phase-transfer conditions
作者:Li-Qian Cui、Kai Liu、Chi Zhang
DOI:10.1039/c0ob00722f
日期:——
Catalytic oxidation of benzylic C–H bonds could be efficiently realized using IBS as a catalyst which was generated in situ from the oxidation of sodium 2-iodobenzenesulfonate (1b) by Oxone in the presence of a phase-transfer catalyst, tetra-n-butylammonium hydrogen sulfate, in anhydrous acetonitrile at 60 °C. Various alkylbenzenes, including toluenes and ethylbenzenes, several oxygen-containing functionalities
A Safe, Convenient and Efficient One-Pot Synthesis of α-Chloroketone Acetals Directly from Ketones Using Iodobenzene Dichloride
作者:Chi Zhang、Jun Yu
DOI:10.1055/s-0029-1216856
日期:2009.7
aliphatic and aromatic ketones, can be directly converted into their corresponding α-chloroketone acetals in high to excellent yields using iodobenzenedichloride in ethylene glycol in the presence of 4 Å molecular sieves at room temperature. ketones - iodobenzene - dichloride - halogenation - hypervalent iodine - acetals