Nickel-Catalyzed Cyanation of Phenol Derivatives with Zn(CN)<sub>2</sub> Involving C–O Bond Cleavage
作者:Yi Gan、Gaonan Wang、Xin Xie、Yuanhong Liu
DOI:10.1021/acs.joc.8b02498
日期:2018.11.16
An efficient nickel-catalyzed cyanation of aryl sulfonates, fluorosulfonates, and sulfamates with Zn(CN)2 was developed, which provides a facile access to the nitrile products in generally good to excellent yields. The reaction is accomplished by using NiII complex as the precatalyst and DMAP as the additive. The method also displays wide functional group compatibility; for example, keto, methoxy,
Synthesis of <i>N</i>-Acyl Sulfamates from Fluorosulfonates and Potassium Trimethylsilyloxyl Imidates
作者:Shuning Zhang、Huan Xiong、Fengping Lu、Fei Ma、Yuang Gu、Peixiang Ma、Hongtao Xu、Guang Yang
DOI:10.1021/acs.joc.9b02394
日期:2019.12.6
An efficient and operationally simple method for the synthesis of N-acyl sulfamates from fluorosulfonates and potassium trimethylsilyloxyl imidates as amide precursor is reported. This approach showed broad substrate scope, mild and base-free reaction conditions, short reaction time, and high to excellent yields. Notably, we demonstrated the power of this reaction in the rapid late-stage functionalization
general palladium-catalyzed one-pot procedure for the synthesis of phosphonates, phosphinates and phosphine oxides from phenols mediated by sulfuryl fluoride. It features mild conditions, broad substrate scope, high functionality tolerance and water insensitivity. The utility of this procedure has been well demonstrated by gram-scale synthesis, sequential synthesis of click chemistry building blocks
An efficient palladium or nickel‐catalyzed C(sp2)−P bond formation proceeds with excellent yields under mild conditions. Direct conversion of phenol to aryl phosphonates in a single pot has been developed. Broad functional group compatibility enables the economical preparation of organophosphorus compounds.