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Nippon Kayaku Co Ltd
Original Assignee
Nippon Kayaku Co Ltd
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Publication date
Application filed by Nippon Kayaku Co LtdfiledCriticalNippon Kayaku Co Ltd
Priority to JP3974777ApriorityCriticalpatent/JPS53124235A/en
Publication of JPS53124235ApublicationCriticalpatent/JPS53124235A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
PURPOSE: To prepare the title compound by the hydrolysis and sulfonation of 2chlorobenzonitrile having an amino group, its inorganic or organic acid salt, or an acylamino group at 5-position, in a single reaction bath consisting of sulfuric acid or fuming sulfuric acid which may contain sulfuric anhydride.
COPYRIGHT: (C)1978,JPO&Japio
JP3974777A1977-04-071977-04-07Preparation of 2-chloro-4-sulfo-5-aminobenzoic acid
PendingJPS53124235A
(en)