GB263191A - Process for the production of 2-amido-4-nitrophenoxyethanol or -propandiol - Google Patents

Process for the production of 2-amido-4-nitrophenoxyethanol or -propandiol

Info

Publication number
GB263191A
GB263191A GB32106/26A GB3210626A GB263191A GB 263191 A GB263191 A GB 263191A GB 32106/26 A GB32106/26 A GB 32106/26A GB 3210626 A GB3210626 A GB 3210626A GB 263191 A GB263191 A GB 263191A
Authority
GB
United Kingdom
Prior art keywords
propandiol
dinitrophenoxyethanol
soda
ethanol
nitrophenoxyethanol
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
GB32106/26A
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.)
Sandoz AG
Original Assignee
Sandoz AG
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 Sandoz AG filed Critical Sandoz AG
Publication of GB263191A publication Critical patent/GB263191A/en
Expired legal-status Critical Current

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

Abstract

263,191. Chemical Works, formerly Sandoz. Dec. 19, 1925, [Convention date]. 2-Amino-4-nitrophenoxy-ethanol orpropandiol, which may be used for the preparation of dyestuffs, are obtained by treating 2: 4-dinitrophenoxy-ethanol or -propandiol with reducing agents, in particular with alkali sulphides or polysulphides. In an example, 2: 4-dinitrophenoxypropandiol is warmed with sodium tetrasulphide; on cooling and neutralizing, an orange precipitate of the nitramine is formed. This is freed from sulphur by dissolving in hydrochloric acid; the base may then be precipitated with soda, and recrystallized from water. The corresponding nitroaminoethanol may be similarly obtained from 2 : 4-dinitrophenoxyethanol. 2:4-Dinitrophenoxyethanol is made by heating 2 : 4-dinitrochlorbenzene with glycol and soda.
GB32106/26A 1925-12-19 1926-12-18 Process for the production of 2-amido-4-nitrophenoxyethanol or -propandiol Expired GB263191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE263191X 1925-12-19

Publications (1)

Publication Number Publication Date
GB263191A true GB263191A (en) 1928-02-02

Family

ID=5983117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32106/26A Expired GB263191A (en) 1925-12-19 1926-12-18 Process for the production of 2-amido-4-nitrophenoxyethanol or -propandiol

Country Status (1)

Country Link
GB (1) GB263191A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376655B (en) * 1980-08-08 1984-12-27 Oreal METHOD FOR PRODUCING NEW GLYCERINA ETHERS OF AMINONITROPHENOLS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376655B (en) * 1980-08-08 1984-12-27 Oreal METHOD FOR PRODUCING NEW GLYCERINA ETHERS OF AMINONITROPHENOLS

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