GB300716A - Manufacture of arsenobenzenes - Google Patents

Manufacture of arsenobenzenes

Info

Publication number
GB300716A
GB300716A GB22463/27A GB2246327A GB300716A GB 300716 A GB300716 A GB 300716A GB 22463/27 A GB22463/27 A GB 22463/27A GB 2246327 A GB2246327 A GB 2246327A GB 300716 A GB300716 A GB 300716A
Authority
GB
United Kingdom
Prior art keywords
acid
arsinic
semicarbazone
hydroxy
mixture
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
GB22463/27A
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
Priority to GB22463/27A priority Critical patent/GB300716A/en
Publication of GB300716A publication Critical patent/GB300716A/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
    • C07F9/66Arsenic compounds
    • C07F9/70Organo-arsenic compounds
    • C07F9/74Aromatic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

300,716. Albert, A. Aug. 26,1927. Arsenobenzenesare prepared by the reduction of an aromatic arsenic compound, or a mixture of two different aromatic arsenic compounds, in an acid medium using as reducing agent a mixture of hypophosphorous acid or a salt thereof with sulphurous acid or one of its salts. The proportions of hypophosphorous acid may be widely varied without affecting the nature of the product. but in the case of the sulphurous acid there should not be present more than one-third of a molecular proportion for each molecular proportion of the arsenic compound. If, however, one molecular proportion or more is used for each molecular proportion of the arsenic compound, arsenobenzenes are obtained which contain sulphur. Hydriodic acid or a salt thereof mav also be present. The products, which are crystalline, are useful therapeutically. Examples are given of the reduction of (1) the semicarbazone of 3 - aldehyde - 1 - phenoxyacetic acid-6-arsinic acid, (2) a mixture of the semicarhazones of 3-hydroxy-1-benzaldehyde-4-arsinic acid and of 3-aldehydo-1- phenoxyacetic acid-6- arsinic acid, (3) the semicarbazone of 1-benzaldehyde-3-hydroxy-4-arsinic acid, using various proportions of the reducing mixture, (4) the semicarbazone of 1-acetophenone-3-hydroxy-4-arsenoxide, (5) 3-aminobenzene-4-hydroxy-1-arsinic acid, using sufficient sulphurous acid to produce a sulphur-containing product. Specification 259,245 is referred to. The semicarbazone of 3-aldehydo-1-phenoxyacetic acid-6-arsinic acid is obtained by the action of chloracetic acid on the semicarbazone of 3- hydroxy-1-benzaldehyde-4-arsinic acid, whose preparation is described in Specification 259,245.
GB22463/27A 1927-08-26 1927-08-26 Manufacture of arsenobenzenes Expired GB300716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB22463/27A GB300716A (en) 1927-08-26 1927-08-26 Manufacture of arsenobenzenes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22463/27A GB300716A (en) 1927-08-26 1927-08-26 Manufacture of arsenobenzenes

Publications (1)

Publication Number Publication Date
GB300716A true GB300716A (en) 1928-11-22

Family

ID=10179764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22463/27A Expired GB300716A (en) 1927-08-26 1927-08-26 Manufacture of arsenobenzenes

Country Status (1)

Country Link
GB (1) GB300716A (en)

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