GB882277A - A process for the recovery of 6-aminopenicillanic acid - Google Patents
A process for the recovery of 6-aminopenicillanic acidInfo
- Publication number
- GB882277A GB882277A GB25341/60A GB2534160A GB882277A GB 882277 A GB882277 A GB 882277A GB 25341/60 A GB25341/60 A GB 25341/60A GB 2534160 A GB2534160 A GB 2534160A GB 882277 A GB882277 A GB 882277A
- Authority
- GB
- United Kingdom
- Prior art keywords
- organic solvent
- aminopenicillanic acid
- ethylhexyl
- compound
- ketone
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D499/00—Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
- C07D499/21—Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring with a nitrogen atom directly attached in position 6 and a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2
- C07D499/42—Compounds with a free primary amino radical attached in position 6
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/14—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by trays or racks or receptacles, which may be connected to endless chains or belts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
6-aminopenicillanic acid is recovered from aqueous solutions thereof by extracting the aqueous solution at a pH of between 1 and 3 with a lesser volume of a water-immiscible organic solvent having dissolved therein between 0.5% and 10% by weight of the aqueous solution of a compound of the general formula: <FORM:0882277/IV (b)/1> wherein R and R1 are each lower alkyl groups containing from 7 to 11 carbon atoms and M is a hydrogen atom or alkali metal radical, and separating the organic solvent phase containing the major portion of the 6-aminopenicillanic acid. The organic solvent may be methyl isobutyl ketone, n-butanol, butyl acetate, n-amyl acetate, isobutanol, n-amyl alcohol, isoamyl alcohol, diamyl ether, diisopropyl ether, ethyl isopropyl ketone, or ethyl tertiary butyl ketone, and the compound of the above formula may be di-2-ethylhexyl), di(1-methylheptyl) or di(1-methyl-4-ethylhexyl) sodium sulpho-succinate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US882277XA | 1959-08-03 | 1959-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB882277A true GB882277A (en) | 1961-11-15 |
Family
ID=22210130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25341/60A Expired GB882277A (en) | 1959-08-03 | 1960-07-20 | A process for the recovery of 6-aminopenicillanic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB882277A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3271409A (en) * | 1964-04-06 | 1966-09-06 | Bristol Myers Co | Chemical conversion of nitro-penicillins to 6-aminopenicillanic acid |
-
1960
- 1960-07-20 GB GB25341/60A patent/GB882277A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3271409A (en) * | 1964-04-06 | 1966-09-06 | Bristol Myers Co | Chemical conversion of nitro-penicillins to 6-aminopenicillanic acid |
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