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1. Lewis acid catalyzed condensation of 2-aminohetarene N-oxides with N,N-dimethylformamide dimethyl acetal.

Author

Karalash, Sergey А., Bystrov, Dmitry M., Ananyev, Ivan V., and Fershtat, Leonid L.

Subjects
*LEWIS acids, *CONDENSATION, *ETHANES, *PYRAZINES, *PYRIMIDINES, *HETEROCYCLIC compounds
Abstract

A method for the introduction of the N,N-dimethylformamidine protective group in a series of six-membered 2-aminohetarene N-oxides was developed. It was shown that 2-amino derivatives of N-oxides of various six-membered heterocycles (pyridines, pyrimidines, pyrazines, tetrazines) successfully enter the reaction. The stability of the N,N-dimethylformamidine protecting group in 2-aminohetarene N-oxides was found to depend on the type of reaction medium. [ABSTRACT FROM AUTHOR]

Published
2021
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