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Yamamoto Chemicals Inc
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Yamamoto Chemicals Inc
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Priority to JP8378675ApriorityCriticalpatent/JPS581148B2/en
Publication of JPS526731ApublicationCriticalpatent/JPS526731A/en
Publication of JPS581148B2publicationCriticalpatent/JPS581148B2/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
PURPOSE: To obtain economically a perinone dye directly from 1,8-dinitronaphthalene with one step chemical reaction, eliminating the amination step that causes reduction in overall yield.