Methyl Salicylate as a Selective Methylation Agent for the Esterification of Carboxylic Acids
作者:Meiming Luo、Si Chen、Lei Jia、Xiaonan Li
DOI:10.1055/s-0033-1340285
日期:——
the preparation of the corresponding alkyl carboxylates. Methyl salicylate is a selective and inexpensive methylating agent for the esterification of carboxylic acids with a wide range of functional group tolerance. The intramolecular hydrogenbonds between the carboxylate and hydroxyl groups in methyl salicylate are essential for the transformation. Allyl, benzyl, methallyl, and propargyl salicylates
Reacting Molecular Oxygen with Butanone under Visible Light Irradiation: A General Aerobic Oxidation of Alkenes, Sulfides, Phosphines, and Silanes
作者:Pengcheng Lian、Kaifeng Wang、Hang Liu、Ruyi Li、Minggang Li、Xiaoguang Bao、Xiaobing Wan
DOI:10.1021/acs.orglett.3c03096
日期:2023.11.10
technique by reacting molecularoxygen with butanone under visible lightirradiation. This method enables the mild oxidation of various functionalized compounds, including olefins, sulfides, phosphines, and silanes. Preliminary mechanistic experiments and theoretical calculations suggest that visible light triggers molecularoxygen to produce singlet oxygen in butanone. This singlet oxygen then reacts with