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Direct oxidative C(sp 3 )─H/C(sp 2 )─H coupling reaction using recyclable Sr‐doped LaCoO 3 perovskite catalyst
Author(s) -
Trinh Khang H.,
Tran Phuong H.,
Nguyen Thanh T.,
Doan Son H.,
Le MinhVien,
Nguyen Tung T.,
Phan Nam T.S.
Publication year - 2020
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5515
Subject(s) - chemistry , catalysis , oxidative coupling of methane , lanthanum , coupling reaction , alkane , heterogeneous catalysis , homogeneous catalysis , perovskite (structure) , strontium , cobaltite , medicinal chemistry , organic chemistry
A strontium‐doped lanthanum cobaltite perovskite, La 0.6 Sr 0.4 CoO 3 , was prepared and utilized as a recyclable heterogeneous catalyst for the direct oxidative C(sp 3 )─H/C(sp 2 )─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 La 0.6 Sr 0.4 CoO 3 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(sp 3 )─H/C(sp 2 )─H coupling reaction. To our best knowledge, the C(sp 3 )─H/C(sp 2 )─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.