GB664782A - Process for manufacturing substituted thiopyruvic acids - Google Patents

Process for manufacturing substituted thiopyruvic acids

Info

Publication number
GB664782A
GB664782A GB12455/49A GB1245549A GB664782A GB 664782 A GB664782 A GB 664782A GB 12455/49 A GB12455/49 A GB 12455/49A GB 1245549 A GB1245549 A GB 1245549A GB 664782 A GB664782 A GB 664782A
Authority
GB
United Kingdom
Prior art keywords
thiopyruvic
acids
substituted
thiazolidione
cooh
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
GB12455/49A
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.)
Chimie et Atomistique SA
Original Assignee
Chimie et Atomistique SA
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 Chimie et Atomistique SA filed Critical Chimie et Atomistique SA
Publication of GB664782A publication Critical patent/GB664782A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C325/00—Thioaldehydes; Thioketones; Thioquinones; Oxides thereof
    • C07C325/02—Thioketones; Oxides thereof
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
    • C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
    • C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D277/34—Oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/06—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Thiazole And Isothizaole Compounds (AREA)

Abstract

b -Substituted a -thiopyruvic acids of formula RHC : C(SH)COOH or RH2C.CS.COOH where R is homocyclic or heterocyclic are prepared by condensing thiazolidione with an aldehyde RCHO and splitting the product with a caustic alkali at a temperature not exceeding substantially 50 DEG C. The alkali is preferably 15 per cent caustic soda. In the examples, thiazolidione is condensed with (1) benzaldehyde, (2) furfural to give the respective substituted thiazolidiones, which are hydrolysed to phenyl and furyl thiopyruvic acids. The Specification as open to inspection under Sect. 91 comprises also the statement that R may be aliphatic. This subject-matter does not appear in the Specification as accepted.
GB12455/49A 1948-05-15 1949-05-10 Process for manufacturing substituted thiopyruvic acids Expired GB664782A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1008721T 1948-05-15

Publications (1)

Publication Number Publication Date
GB664782A true GB664782A (en) 1952-01-09

Family

ID=9567594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12455/49A Expired GB664782A (en) 1948-05-15 1949-05-10 Process for manufacturing substituted thiopyruvic acids

Country Status (2)

Country Link
FR (1) FR1008721A (en)
GB (1) GB664782A (en)

Also Published As

Publication number Publication date
FR1008721A (en) 1952-05-21

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