Selective Excitation of Pd-decorated Titania Enables Consecutive C-C Couplings and Hydrogenations under Ambient Conditions
Selective Excitation of Pd-decorated Titania Enables Consecutive C-C Couplings and Hydrogenations under Ambient Conditions
复制标题
选择性激发 Pd 修饰的二氧化钛可在环境条件下实现连续的 C-C 偶联和氢化
DOI：
10.1002/cctc.202300528
复制
发表时间：
2023
期刊：
影响因子：
4.5
通讯作者：
Whitehead R
中科院分区：
文献类型：
--
作者：
Whitehead R
在这里，我们发现Pd修饰的TiO 2（Pd@TiO2）通过简单地调节反应的激发条件能够实现连续的光催化Sonogashira C-C偶联和氢化步骤。我们证明，在第一个反应步骤中产生的含有碘物质的副产物可以抑制随后的光催化过程，但它们可以很容易地从溶液中去除，从而在温和的反应条件下形成新的C-C键。这项工作将多相光催化剂纳入连续的转换，促进优雅的反应，同时满足绿色化学的要求。
Here, we discovered that Pd decorated TiO2(Pd@TiO2) enables consecutive photocatalytic Sonogashira C−C coupling and hydrogenation steps by simply adjusting the excitation conditions of the reaction. We demonstrated that by‐products containing iodine species generated in the first reaction step can inhibit subsequent photocatalytic processes, but they can be easily removed from solution to enable a compatible synthetic sequence for new C−C bond formation under mild reaction conditions. This work incorporates heterogeneous photocatalysts into consecutive transformations, promoting elegant reactions while meeting the demands of green chemistry.