Phase Transfer Catalysed N-Monoalkylation of Amino Anthraquinones

Kalkote Uttam Ramrao National Chemical Laboratory, Pune, 411 008, India

Choudhary Anil Ramkumar National Chemical Laboratory, Pune, 411 008, India

Natu Arvind Anant National Chemical Laboratory, Pune, 411 008, India

Ayyangar Nagaraja Ramanuja National Chemical Laboratory, Pune, 411 008, India

Abstract

1-Alkylaminoanthraquinones ( 2 a-f) and 1,4-bisalkylaminoanthraquinones ( 4 a-c) were prepared from aminoanthraquinones ( 1,3 ) by alkylation with alkyl sulphate/alkyl halide in presence of powdered sodium hydroxide, potassium carbonate and phase transfer catalyst.

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Phase Transfer Catalysed N-Monoalkylation of Amino Anthraquinones

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Phase Transfer Catalysed N-Monoalkylation of Amino Anthraquinones

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