Catalysis Communications (2020)
Update date:2022-08-16
Topics:
Le, Hao Anh Nguyen
Nguyen, Long Hoang
Nguyen, Quynh Nhu Ba
Nguyen, Hai Truong
Nguyen, Khang Quoc
Tran, Phuong Hoang
Eosin Y-catalyzed one-pot coupling and cyclization of o-substituted anilines with aldehydes to form benzoxazoles and benzothiazoles under mild condition has been developed. The reaction scope was broadly tolerant of various 2-substituted anilines and aldehydes. The desired products were obtained in high yields with the use of eosin Y as a photocatalyst under a substantial refinement of reaction conditions in comparison with previous literature. Based on the experimental results observed, a plausible mechanism involving a radical process has been proposed.
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