GB190102913A - The Manufacture or Production of New Basic Dye-stuffs. - Google Patents

The Manufacture or Production of New Basic Dye-stuffs.

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Publication number
GB190102913A
GB190102913A GB190102913DA GB190102913A GB 190102913 A GB190102913 A GB 190102913A GB 190102913D A GB190102913D A GB 190102913DA GB 190102913 A GB190102913 A GB 190102913A
Authority
GB
United Kingdom
Prior art keywords
dyes
condensed
methylketole
diamidobenzophenone
alpha
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
Henry Edward Newton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190102913A publication Critical patent/GB190102913A/en
Expired legal-status Critical Current

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  • Indole Compounds (AREA)
  • Coloring (AREA)

Abstract

2913. Newton, H. E., [Farbenfabriken vorm. F. Bayer & Co.]. Feb. 11. Dyes, artificial.-Basic dyes which yield red to violet and blue shades upon silk, wool, and tanninmordanted cotton, are produced as follows :-(1) p-Diamidobenzophenone, or an alkyl derivative thereof, or a thioketone or auramine corresponding thereto, is condensed in the presence of an acid such as hydrochloric acid, with alpha-methylindole (methylketole), alpha-phenylindole, or their derivatives which are halogenated or alkylated in the benzene nucleus. The dyes are precipitated by pouring the mixture into ice-water containing common salt. Examples are given in which p-diamidobenzophenone, its tetramethyl or tetraethyl derivatives, and auramine-G, are respectively condensed with methylketole ; and tetramethyl- and tetraethyl-diamidobenzophenone are respectively condensed with Pr2B3 dimethylindole, Pr2-methyl-B3-chloroindole, alpha-phenylindole, Pr2-phenyl-B3-methylindole, and Pr2-phenyl-B3-chloroindole. (2) If the ketones used in the first process are replaced by the corresponding hydrols, leuco bases are produced which are converted into dyes by oxidation. An example is given in which tetraethyldiamidobenzhydrol is condensed with methylketole in hot alcohol and hydrochloric acid, and the leuco base produced is precipitated and then oxidized by means of ferric chloride.
GB190102913D 1901-02-11 1901-02-11 The Manufacture or Production of New Basic Dye-stuffs. Expired GB190102913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190102913T 1901-02-11

Publications (1)

Publication Number Publication Date
GB190102913A true GB190102913A (en) 1901-12-21

Family

ID=32420865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190102913D Expired GB190102913A (en) 1901-02-11 1901-02-11 The Manufacture or Production of New Basic Dye-stuffs.

Country Status (1)

Country Link
GB (1) GB190102913A (en)

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