Described here is a reductive amination/hydrosilylation cascade of α,β‐unsaturated aldehydes mediated by a Lewis acidic borane catalyst. The present reaction system provides an one‐pot synthetic route towards β‐silylated secondary amines that have not been accessible by other previous catalysis. Comparative 1H NMR studies on the silylative reduction of enimines revealed that steric bulkiness of primary
                                    这里描述的是
路易斯酸性
硼烷催化剂介导的α,β-不饱和醛的还原胺化/氢化
硅烷化级联。本反应系统提供了一种单罐合成路线,可通往其他先前催化无法达到的β-甲
硅烷基化仲胺。对
亚胺的甲
硅烷基化还原进行的比较1 H NMR研究表明,
伯胺反应物的空间体积极大地影响了催化效率和区域选择性。该策略适用于广泛的底物,并适用于一锅克级合成。此外,还发现非对映选择性地引入β-甲
硅烷基是可行的(dr高达71:29)。