Highly efficient method for the preparation ofN-tert-butyl amides by reaction of nitriles withtert-butyl acetate is described using polyvinylpolypyrrolidone-supported boron trifluoride (PVPP-BF3) at 70°C in good to excellent yields. Selective amidation of benzonitrile in the presence of acetonitrile was also achieved. polyvinylpolypyrrolidone-boron trifluoride complex shows non-corrosive and stable solid catalyst elevated Lewis acid property.
通过在70°C下使用聚乙烯吡咯烷酮支持的三氟化硼(PVPP-BF3),以良好至优异的产率描述了一种高效的方法,通过腈与叔丁基乙酸叔丁酯反应制备N-叔丁基酰胺。在乙腈存在下实现了对苯腈的选择性酰胺化。聚乙烯吡咯烷酮-三氟化硼复合物表现出非腐蚀性和稳定的固体催化剂,具有升高的Lewis酸性能。