Synthesis of N,N′-dialkylquinacridones under the conditions of heterogeneous catalysis

Autor:	Pushkina, L. L., Shelyapin, O. P., Shein, S. M.
Zdroj:	Chemistry of Heterocyclic Compounds; July 1985, Vol. 21 Issue: 7 p792-795, 4p
Abstrakt:	Alkylation of quinacridone in a heterogeneous medium in the presence of catalytic amounts of quaternary ammonium salts; was used to synthesize N,N'-dialkyl derivatives with yields of 80–92%. Performance of the reaction with phase transfer catalysts allows the use of alkylsulfates and alkylsulfonates besides alkyl halides. The use of a branched alkylating agent (isopropyl iodide) increases, due to steric factors, the reaction time, and reduces the yield of the product of alkylation.
Databáze:	Supplemental Index
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