一般的芳基烷基硫化物与芳基锌试剂的交叉偶联,即使在室温或低于室温下,使用钯-N-杂环卡宾(NHC)催化剂也能顺利进行。当与有机硫特有的反应(即S N Ar磺酰化或Pummerer反应)结合使用时,交叉偶联可提供有趣的转化,而这些转化很难实现。烷基硫烷基优先被转化,而甲苯磺酰氧基和氯完好无损,这扩大了正交交叉偶联的种类。
Process for production of sulfonium compounds and novel methylthiophenyl derivatives
申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:EP0401696A2
公开(公告)日:1990-12-12
Disclosed is process for producing a sulfonium compound of the general formula (III), comprising reacting alkylthiophenol derivative of the general formula (I) and dialkyl sulfate of the general formula (II) in the presence of at least one inorganic compound selected from the group consisting of alkali metal carbonate, alkali metal hydrogencarbonate, alkaline earth metal hydroxide, alkaline earth metal carbonate, and oxides of Group II metals of the Periodic Table.
wherein all the symbols are as defined in the appended claims.
Cross‐coupling of general aryl alkyl sulfides with arylzincreagents proceeds smoothly, even at room temperature or below, with a palladium–N‐heterocyclic carbene (NHC) catalyst. When combined with reactions that are unique to organosulfurs, that is, the SNAr sulfanylation or Pummerer reaction, the cross‐coupling offers interesting transformations that are otherwise difficult to achieve. An alkylsulfanyl
一般的芳基烷基硫化物与芳基锌试剂的交叉偶联,即使在室温或低于室温下,使用钯-N-杂环卡宾(NHC)催化剂也能顺利进行。当与有机硫特有的反应(即S N Ar磺酰化或Pummerer反应)结合使用时,交叉偶联可提供有趣的转化,而这些转化很难实现。烷基硫烷基优先被转化,而甲苯磺酰氧基和氯完好无损,这扩大了正交交叉偶联的种类。