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- Title
Direct oxidative C(sp<sup>3</sup>)─H/C(sp<sup>2</sup>)─H coupling reaction using recyclable Sr‐doped LaCoO<sub>3</sub> perovskite catalyst.
- Authors
Trinh, Khang H.; Tran, Phuong H.; Nguyen, Thanh T.; Doan, Son H.; Le, Minh‐Vien; Nguyen, Tung T.; Phan, Nam T.S.
- Abstract
A strontium‐doped lanthanum cobaltite perovskite, La0.6Sr0.4CoO3, was prepared and utilized as a recyclable heterogeneous catalyst for the direct oxidative C(sp3)─H/C(sp2)─H coupling reaction between cyclic ethers and alkenes or coumarins to achieve corresponding α‐functionalized ethers. The α‐functionalization of cyclic thioethers or amides with alkenes or coumarins was also achieved via this protocol. The La0.6Sr0.4CoO3 catalyst exhibited better performance than a variety of homogeneous and heterogeneous catalysts. Utilizing a recyclable catalyst would offer a greener option for the direct oxidative C(sp3)─H/C(sp2)─H coupling reaction. To our best knowledge, the C(sp3)─H/C(sp2)─H coupling between olefins and ethers to generate α‐functionalized ethers using a heterogeneous catalyst has not been previously reported, and the α‐functionalization of cyclic thioethers or amides with alkenes or coumarins is new.
- Subjects
HETEROGENEOUS catalysts; CATALYSTS recycling; CYCLIC ethers; CATALYSTS; AMIDES; STRONTIUM ions; LANTHANUM compounds; METHYLAMMONIUM
- Publication
Applied Organometallic Chemistry, 2020, Vol 34, Issue 4, p1
- ISSN
0268-2605
- Publication type
Article
- DOI
10.1002/aoc.5515