GB244746A - Manufacture of aromatic stibinic acids - Google Patents

Manufacture of aromatic stibinic acids

Info

Publication number
GB244746A
GB244746A GB30712/25A GB3071225A GB244746A GB 244746 A GB244746 A GB 244746A GB 30712/25 A GB30712/25 A GB 30712/25A GB 3071225 A GB3071225 A GB 3071225A GB 244746 A GB244746 A GB 244746A
Authority
GB
United Kingdom
Prior art keywords
acid
glycerin
added
antimony oxide
aromatic
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
GB30712/25A
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.)
Chemische Fabrik Von Heyden AG
Original Assignee
Chemische Fabrik Von Heyden 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 Chemische Fabrik Von Heyden AG filed Critical Chemische Fabrik Von Heyden AG
Publication of GB244746A publication Critical patent/GB244746A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/90Antimony compounds
    • C07F9/92Aromatic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Aromatic stibinic acids are prepared by treating a diazo compound with antimony oxide in the presence of a polyvalent alcohol such as glycerin or mannite. The product is not very soluble in the alkaline solution containing the polyvalent alcohol and readily precipitates with acid; the presence of the alcohol also reduces the amount of undesirable by-products. According to the examples, (1) a solution of antimony oxide in hydrochloric acid, to which glycerin has been added, is poured into an ice-cooled solution of diazotized aniline and caustic soda then added; the resulting phenylstibinic acid is precipitated with hydrochloric acid and purified, when a greater yield is obtained than if glycerin were absent or if tartar emetic were used instead of antimony oxide; (2) similar increase in output is obtained if glycerin be added when making p-chlorophenylstibinic acid, or m-chloro-p-acetylaminophenylstibinic acid from 2-chloro-4-amino-1-acetanilide.
GB30712/25A 1924-12-18 1925-12-04 Manufacture of aromatic stibinic acids Expired GB244746A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE244746X 1924-12-18

Publications (1)

Publication Number Publication Date
GB244746A true GB244746A (en) 1926-04-08

Family

ID=5927595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30712/25A Expired GB244746A (en) 1924-12-18 1925-12-04 Manufacture of aromatic stibinic acids

Country Status (1)

Country Link
GB (1) GB244746A (en)

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