Organic Chemistry Institute, Westfälische Wilhelms University Münster, Corrensstraße 36, 48149 Münster, Germany.
Org Lett. 2022 Mar 4;24(8):1689-1694. doi: 10.1021/acs.orglett.2c00288. Epub 2022 Feb 23.
The first visible-light-mediated photocatalytic, metal- and base-free protodesilylation of arylsilanes is presented. The C(sp)-Si bond cleavage process is catalyzed by a 5 mol % loading of a commercially available acridinium salt upon blue-light irradiation. Two simple approaches have been identified employing either aerobic or hydrogen atom transfer cocatalytic conditions, which enable the efficient and selective desilylation of a broad variety of simple and complex arylsilanes under mild conditions.
本文首次报道了可见光促进的、无金属和碱的芳基硅烷的脱硅基反应。在蓝光照射下，商业可得的吖啶鎓盐以 5 mol%的用量催化 C(sp)-Si 键的断裂过程。通过采用有氧或氢原子转移共催化条件，确定了两种简单的方法，这使得在温和条件下能够有效地、选择性地对各种简单和复杂的芳基硅烷进行脱硅基反应。
