GB191029722A - Improvements in the Manufacture and Production of Aldehydes of the Anthraquinone Series. - Google Patents

Improvements in the Manufacture and Production of Aldehydes of the Anthraquinone Series.

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Publication number
GB191029722A
GB191029722A GB191029722DA GB191029722A GB 191029722 A GB191029722 A GB 191029722A GB 191029722D A GB191029722D A GB 191029722DA GB 191029722 A GB191029722 A GB 191029722A
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GB
United Kingdom
Prior art keywords
dianthraquinonyl
derivatives
production
dimethyl
aldehydes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
James Yate Johnson
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Individual
Original Assignee
Individual
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Publication date
Application filed by Individual filed Critical Individual
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Publication of GB191029722A publication Critical patent/GB191029722A/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

29,722. Johnson, J. Y., [Badische Anilin & Soda Fabrik]. Dec. 21. 1: 1<1>-Dianthraquinonyl-2::2<1>-dialdehyde and its chlor derivatives are obtained by treating # - tetrahalogen-2 : 2<1>-dimethyl-1 : 1<1>-dianthraquinonyl or chlor derivatives thereof with concentrated or fuming sulphuric acid, with or without boric acid. The production of the dialdehyde itself and its 4:4<1>-, 6:6<1>-, and 7:7<1>- dichlor derivatives is specified. The products may be used in dyeing or printing, or be converted into other dyes. Specification 16,632/05 is referred to. # - Tetrahalogen-2:2<1>-dimethyl-1:1<1>-dianthraquinonyl and chlor derivatives thereof are obtained by treating 2:2<1>-dimethyl-1:1<1>-dianthraquinonyl or chlor derivatives thereof with halogenating-agents.
GB191029722D 1910-12-21 1910-12-21 Improvements in the Manufacture and Production of Aldehydes of the Anthraquinone Series. Expired GB191029722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191029722T 1910-12-21

Publications (1)

Publication Number Publication Date
GB191029722A true GB191029722A (en) 1911-09-21

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ID=32564423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191029722D Expired GB191029722A (en) 1910-12-21 1910-12-21 Improvements in the Manufacture and Production of Aldehydes of the Anthraquinone Series.

Country Status (1)

Country Link
GB (1) GB191029722A (en)

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