GB856395A - Process for obtaining d(-)-alpha-hydroxy-beta, beta-dimethyl-gamma-butyrolactone - Google Patents

Process for obtaining d(-)-alpha-hydroxy-beta, beta-dimethyl-gamma-butyrolactone

Info

Publication number
GB856395A
GB856395A GB14783/59A GB1478359A GB856395A GB 856395 A GB856395 A GB 856395A GB 14783/59 A GB14783/59 A GB 14783/59A GB 1478359 A GB1478359 A GB 1478359A GB 856395 A GB856395 A GB 856395A
Authority
GB
United Kingdom
Prior art keywords
dimethyl
beta
butyrolactone
hydroxy
obtaining
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
GB14783/59A
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.)
Nopco Chemical Co
Original Assignee
Nopco Chemical Co
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 Nopco Chemical Co filed Critical Nopco Chemical Co
Publication of GB856395A publication Critical patent/GB856395A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member 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
    • C07D307/32—Oxygen atoms
    • C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form

Landscapes

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

Abstract

D (-)-a -hydroxy-b , b -dimethyl-a -butyrolactone is obtained from racemic a , g -dihydroxy-b , b -dimethyl-butyramide by reacting 1-brucine with with racemic a , g -dihydroxy-b , b -dimethyl butyramide in an inert solvent, recovering from the resulting reaction mixture a complex of 1-brucine-D (-) p -a -hydroxy-b , b -dimethyl-a -butyrolactone and obtaining D (-) -a -hydroxy-b , b -dimethyl-g -butyrolactone from said complex, e.g. the complex may be reacted with a base thereby forming D (+)-sodium pantoate which is then treated with an acid.
GB14783/59A 1958-06-19 1959-04-30 Process for obtaining d(-)-alpha-hydroxy-beta, beta-dimethyl-gamma-butyrolactone Expired GB856395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US856395XA 1958-06-19 1958-06-19

Publications (1)

Publication Number Publication Date
GB856395A true GB856395A (en) 1960-12-14

Family

ID=22192964

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14783/59A Expired GB856395A (en) 1958-06-19 1959-04-30 Process for obtaining d(-)-alpha-hydroxy-beta, beta-dimethyl-gamma-butyrolactone

Country Status (1)

Country Link
GB (1) GB856395A (en)

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