Bronsted acid-promoted hydroamination of unsaturated hydrazones: access to biologically important 5-arylpyrazolines.

ABSTRACT: A novel and efficient Brønsted acid-promoted hydroamination of hydrazone-tethered olefins has been developed. A variety of pyrazolines have been easily obtained in good to excellent yields with high chemo- and regioselectivity under simple and mild conditions. This method represents a straightforward, facile, and practical approach toward biologically important 5-arylpyrazolines, which are difficult to access by previously reported radical hydroamination of β,γ-unsaturated hydrazones.

SUBMITTER: He H 

PROVIDER: S-EPMC9033072 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature