Mannich Bases of 4-Hydroxyazobenzenes

Jozef Weglewski; Radoslaw Kmiecik; Jacek Cieslak; Juliusz Pernak

Article | Open Access

Mannich Bases of 4-Hydroxyazobenzenes

Jozef Weglewski, Radoslaw Kmiecik, Jacek Cieslak and Juliusz Pernak

Institute of Chemical Technology and Engineering, Poznan University of Technology, 60-965 Poznari, pi. Sklodowsklej-Curie 2, Poland.

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ABSTRACT:

4-Hydroxyazobenzenes or 8-hydroxy-5-(phenylazo) quinoline react readily with formaldehyde and a variety of secondary amines to give Mannich bases. Mannich bases methiodides are converted into the corresponding substituted phenols by the displacement of the N*(CH3)R2 group in good yields.

KEYWORDS:

Mannich bases; Mannich bases methiodide; phenols; 8-hydroxyquinolines; alkylation