Alkynylthioimidazolium Salts: Efficient Reagents for the Synthesis of Alkynyl Sulfides by Electrophilic Thioalkynylation
作者:Javier Peña、Garazi Talavera、Bernd Waldecker、Manuel Alcarazo
DOI:10.1002/chem.201604760
日期:2017.1.1
a highly modular, clean, and scalable access to a broad variety of alkynyl sulfides in good‐to‐excellent yields. The utility of this protocol was showcased by the preparation of alkynyl sulfides, which are particularly difficult to obtain or simply unavailable through the existing methodologies. In addition, the synthetic method was extended to the preparation of alkynyl selenides.
据报道,通过有机锌化合物与二溴(咪唑鎓)硫代呋喃的反应,可以有效地合成一系列炔基硫代咪唑鎓盐。向这些新物种中添加格氏试剂可提供高度模块化,清洁且可扩展的途径,以优良至优异的产率获得各种炔基硫。炔基硫醚的制备证明了该方案的实用性,炔基硫醚特别难以获得或根本无法通过现有方法获得。此外,合成方法还扩展到炔基硒化物的制备。