Photoactivated silicon–oxygen and silicon–nitrogen heterodehydrocoupling with a commercially available iron compound
作者:Matthew B. Reuter、Michael P. Cibuzar、James Hammerton、Rory Waterman
DOI:10.1039/c9dt04870g
日期:——
Silicon-oxygen and silicon-nitrogen heterodehydrocoupling catalyzed by the commercially available cyclopentadienyl dicarbonyl iron dimer [CpFe(CO)2]2 (1) under photochemical conditions is reported. Reactions between alcohols and PhSiH3 with catalytic 1 under visible-light irradiation produced silyl ethers quantitively. Reactions between either secondary or tertiary silanes and alcohols also produced
报道了在光化学条件下由市售的环戊二烯基二羰基铁二聚体[CpFe(CO)2] 2(1)催化的硅-氧和硅-氮杂脱氢偶联。在可见光照射下,醇与PhSiH3与催化剂1的反应定量生成了甲硅烷基醚。仲硅烷或叔硅烷与醇之间的反应也产生了甲硅烷基醚,但是,这些反应的特点是反应时间更长且转化率较低。伯胺或仲胺与硅烷与催化剂1的反应显示出混合效率,其转化率为20-100%。机理研究表明,甲硅烷基铁化合物在键形成步骤中不重要,并提出了亲核性醇盐或酰胺中间体。最重要的,