Ru<sup>III</sup>(OTf)SalophenCH<sub>2</sub>-NHSiO<sub>2</sub>-Fe: an efficient and magnetically recoverable catalyst for trimethylsilylation of alcohols and phenols with hexamethyldisilazane
作者:Maryam Torki、Shahram Tangestaninejad、Valiollah Mirkhani、Majid Moghadam、Iraj Mohammadpoor-Baltork
DOI:10.1002/aoc.3125
日期:2014.4
Efficient trimethylsilylation of alcohols and phenols with hexamethyldisilazane (HMDS) catalyzed by ruthenium(III) complex of chloromethylated Salophen supported on nanomagnetic materials is reported. First, the iron nanomagnets were silica coated, functionalized with amine and then ruthenium CM‐Salophen was successfully bonded to their surface. The catalyst, RuIII(OTf)SalophenCH2–NHSiO2–Fe, was characterized
报道了在纳米磁性材料上负载的氯甲基化Salophen的钌(III)络合物催化的六甲基二硅氮烷(HMDS)催化的醇和酚的三甲基硅烷化反应。首先,将铁纳米磁铁涂有二氧化硅,用胺官能化,然后将CM-沙洛芬钌成功地键合到它们的表面。催化剂Ru III(OTf)SalophenCH 2 -NHSiO 2 -Fe的特征在于元素分析,FT-IR和UV-可见光谱技术,透射电子显微镜和电感耦合等离子体(ICP)。Ru III(OTf)SalophenCH 2 –NHSiO 2-Fe催化伯醇和仲醇以及苯酚的三甲基甲硅烷基化反应,并在室温下以高收率和较短的反应时间获得了相应的TMS醚。这种新的杂化三甲基甲硅烷基化催化剂很容易用磁铁回收,即使连续运行五次也没有表现出明显的活性损失。版权所有©2014 John Wiley&Sons,Ltd.