Reacción #1121728

ord-f80910c7050e4fdaab66ea7a7b4c51fd

Ecuación de reacción

O=C1CCC(=O)O1
Succinic anhydride
CCCCC/C=C\C/C=C\CCCCCCCCOC(CO)CN(C)C
3-(dimethylamino)-2-((9Z,12Z)-octadeca-9,12-dienyloxy)propan-1-ol
CCCCC/C=C\C/C=C\CCCCCCCCOC(COC(=O)CCC(=O)O)CN(C)C
4-(3-(dimethylamino)-2-((9Z,12Z)-octadeca-9,12-dienyloxy)propoxy)-4-oxobutanoic acid

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturathe resultant was refluxed for 18 hours under argon
  2. 2
    ConcentraciónThe mixture was concentrated
  3. 3
    workup.DISSOLUTIONdissolved in EtOAc (10 mL)
  4. 4
    workup.ADDITIONpoured into deionized water (20 mL)
  5. 5
    OtroThe layers were separated
  6. 6
    Extracciónthe aqueous layer was extracted with two additional portions of EtOAc (25 mL)
  7. 7
    SecadoThe combined organic extracts were dried (MgSO4)
  8. 8
    Filtraciónfiltered
  9. 9
    Concentraciónconcentrated

Procedimiento

Succinic anhydride (0.60 g, 5.99 mmol, 1.1 equiv) was added in one portion to a dry THF (11 mL) solution of 3-(dimethylamino)-2-((9Z,12Z)-octadeca-9,12-dienyloxy)propan-1-ol (2.0 g, 5.45 mmol, 1.0 equiv) and the resultant was refluxed for 18 hours under argon. The mixture was concentrated and then dissolved in EtOAc (10 mL) and poured into deionized water (20 mL). The layers were separated and the aqueous layer was extracted with two additional portions of EtOAc (25 mL). The combined organic extracts were dried (MgSO4), filtered and concentrated to provide crude 4-(3-(dimethylamino)-2-((9Z,12Z)-octadeca-9,12-dienyloxy)propoxy)-4-oxobutanoic acid, a thick yellow oil, which was used without further purification.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08545877B2uspto-grants-2013_10