作者:Ivan Demianets、Jonathan R. Hunt、Jahan M. Dawlaty、Travis J. Williams
DOI:10.1021/acs.organomet.8b00778
日期:2019.1.28
late-transition-metal catalysts, the metal complex itself is frequently the chromophore involved in such reactivity switching. We show here a base-pendant ligand–metal bifunctional scaffold wherein a photobase, a compound that becomes more basic in the excited state (pKa < pKa*), is used to switch the proton acceptor ability on an active site of the complex. The system differs from those with metal-centered
很少有办法通过外部辐射来打开或关闭催化剂的反应性,或改变其选择性。其中许多涉及催化剂的光化学活化。在均相的后过渡金属催化剂的情况下,金属配合物本身通常是参与这种反应性转换的生色团。我们在这里显示了一种碱悬垂配体-金属双功能支架,其中光碱是一种在激发态下变得更碱性的化合物(p K a