Palladium-Catalyzed Coupling of N-Heteroaryl Sulfides with Organozinc Reagents
摘要:
The palladium-catalyzed cross-coupling of N-heteroaryl sulfides with organozinc reagents was developed. Scope and limitation of the reaction regarding generality of zinc reagents and substrate were also investigated.
Iron-catalyzed thioetherification of thiols with aryl iodides
作者:Jhih-Ru Wu、Che-Hung Lin、Chin-Fa Lee
DOI:10.1039/b907362k
日期:——
FeCl(3) in combination with bisphosphine ligands represents an efficient catalyst system for the cross-coupling of aryl- and alkyl thiols with aryliodides, a broad spectrum of functional groups can be tolerated during the catalysis.
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。