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A Simple and convenient one pot synthesis of aminoquinone derivatives via
Electrochemical amination of benzoquinone with secondary amines


Jyoti Malviya1, Shashi Kala2, Hemlata Singh3, R.K.P.Singh*
Page No. 7-16


Abstract

A simple and efficient method for the convenient synthesis of aminoquinones have been described
on reaction with catechol and various secondary amines using lithium perchlorate as a supporting
electrolyte in acetonitrile media at platinum electrode under constant potential electrolysis. The
results revealed that the o-benzoquinone derived from the oxidation of catechol, participates in
Michael addition reaction with secondary amines and convert it into the aminoquinones in a good
yield with high purity.The method is cost-effective, high-yielding, clean, and selective. The products
of electrosynthesis have been purified and characterized by FTIR, 1HNMR, 13CNMR and
mechanism was deduced with cyclic voltammetric study.
Key Words: Anodic oxidation, cyclic voltammetry, electrochemical synthesis, o-benzoquinone
secondary amines.


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