Concepedia

A Novel One Step Photocatalytic Synthesis of 2-Methyl Quinoxaline from <i>o</i>-Phenylenediamine and Propyleneglycol over TiO2/zeolite Mediated System

K. V. Subba Rao, M. Subrahmanyam

Chemistry Letters · 2002 · 15 citations · 16 references

DOI

Concepts

Abstract

Abstract Molecular oxygen, Light, TiO2/zeolite composite promoted 2-methyl quinoxaline (2-MQ) and quinoxaline (Q) synthesis from o-phenylenediamine and propyleneglycol. The oxidation of propyleneglycol and its further cyclization with o-phenylenediamine formed 2-MQ and subsequent oxidative demethylation of 2-MQ via the corresponding acid, formed quinoxaline (Q).

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