GB293322A - Process for the oxidation of aldoses - Google Patents

Process for the oxidation of aldoses

Info

Publication number
GB293322A
GB293322A GB19168/28A GB1916828A GB293322A GB 293322 A GB293322 A GB 293322A GB 19168/28 A GB19168/28 A GB 19168/28A GB 1916828 A GB1916828 A GB 1916828A GB 293322 A GB293322 A GB 293322A
Authority
GB
United Kingdom
Prior art keywords
sodium carbonate
chlorine
calcium
aldoses
added
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
GB19168/28A
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 GB293322A publication Critical patent/GB293322A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/01—Saturated compounds having only one carboxyl group and containing hydroxy or O-metal groups
    • C07C59/10—Polyhydroxy carboxylic acids
    • C07C59/105—Polyhydroxy carboxylic acids having five or more carbon atoms, e.g. aldonic acids

Landscapes

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

Abstract

293,322. Chemische Fabrik vorm. Sandoz. July 2, 1927, [Convention date]. Addition to 289,280. Monocarboxylic acids of aldoses.-Aldoses are oxidized to the corresponding monocarboxylic acids by means of chlorine and a small quantity of a bromine or iodine compound in the presence of aqueous sodium carbonate, the solution being just maintained alkaline throughout the process. In one example, a, lactose solution containing sodium carbonate and sodium bromide is treated with chlorine, and further sodium carbonate is added during the reaction. To the exactly neutral solution, calcium chloride is. added to precipitate the double compound of calcium lactobionate and calcium chloride. In a second example, chlorine is passed into a glucose solution containing sodium carbonate and sodium bromide, and during the reaction calcium carbonate and sodium carbonate are added a little at a time. Calcium gluconate separates from the resulting clear solution. The Specification as open to inspection under Sect. 91 (3) (a) mentions also the use of sodium iodide to facilitate the oxidation with chlorine. This subject-matter does not appear in the Specification as accepted.
GB19168/28A 1927-07-02 1928-07-02 Process for the oxidation of aldoses Expired GB293322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE293322X 1927-07-02

Publications (1)

Publication Number Publication Date
GB293322A true GB293322A (en) 1928-11-08

Family

ID=6078605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19168/28A Expired GB293322A (en) 1927-07-02 1928-07-02 Process for the oxidation of aldoses

Country Status (1)

Country Link
GB (1) GB293322A (en)

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