近日，德国拜罗伊特大学Shoubhik Das团队报道了以CO₂为氧供体的烯烃光催化氧化裂解。该项研究成果发表在2026年6月4日出版的《科学》杂志上。

碳-碳双键的氧化裂解通常需要危险的试剂和苛刻的条件。

研究组报道了将温和二氧化碳（CO₂）作为氧供体，在室温和常压下实现烯烃的光催化氧化裂解，生成酮或羧酸。即采用一种稳健的铁基非均相光催化剂，促进氧原子转移形成环氧化物中间体，随后发生开环和碳-碳键断裂，以高选择性地得到氧化产物。综合机理研究结合了时间分辨光谱、同位素标记、原位光谱分析以及先进的量子力学模拟。这些结果揭示了光催化条件下CO₂氧原子转移的基本原理，为光驱动的氧化转化提供了一个可持续的平台。

附：英文原文

Title: Photocatalyzed oxidative cleavage of alkenes using CO2 as an oxygen donor

Author: Yuman Qin, Peng Ren, Jun Hu, Suman Pradhan, Thanh Huyen Vuong, Xiufang He, Lulu Alluhaibi, Nils Rockstroh, Susanna Monti, Giovanni Barcaro, Aleksander Jaworski, Piotr Kutrowski, Jabor Rabeah, Daniel Hohenberger, Sergey Bagnich, Anna Khler, Josef Breu, Gianvito Vilé, Matthias Beller, Shoubhik Das

Issue&Volume: 2026-06-04

Abstract: Oxidative cleavage of carbon-carbon double bonds often requires hazardous reagents and demanding conditions. In this study, we report a photocatalytic oxidative cleavage of alkenes using benign carbon dioxide (CO2) as an oxygen donor, producing ketones or carboxylic acids at atmospheric pressure and room temperature. A robust iron-based heterogeneous photocatalyst facilitates oxygen transfer to form an epoxide intermediate that subsequently undergoes ring opening and carbon-carbon bond cleavage to yield the oxidative products with high selectivity. Comprehensive mechanistic studies combine time-resolved spectroscopy, isotope labeling, and in situ spectroscopic analyses with advanced quantum mechanical simulations. These results uncover fundamental principles of oxygen transfer from CO2 under photocatalytic conditions, offering a sustainable platform for light-driven oxidative transformations.

DOI: aed6068

Source: https://www.science.org/doi/10.1126/science.aed6068