Reacción #1121730

ord-a6108a594ce945dab537ccccccce5210

Ecuación de reacción

O=C1CCC(=O)O1
Succinic anhydride
CCCCC/C=C\C/C=C\CCCCCCCCOCCC(O)CN(C)C
1-(dimethylamino)-4-((9Z,12Z)-octadeca-9,12-dienyloxy)butan-2-ol
CCCCC/C=C\C/C=C\CCCCCCCCOCCC(CN(C)C)OC(=O)CCC(=O)O
4-(1-(dimethylamino)-4-((9Z,12Z)-octadeca-9,12-dienyloxy)butan-2-yloxy)-4-oxobutanoicacid

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
    Otrothe residue was partitioned between EtOAc (10 mL) and deionized water (20 mL)
  4. 4
    OtroThe layers were separated
  5. 5
    Extracciónthe aqueous layer was extracted with two additional portions of EtOAc (25 mL)
  6. 6
    SecadoThe combined organic extracts were dried (MgSO4)
  7. 7
    Filtraciónfiltered
  8. 8
    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 1-(dimethylamino)-4-((9Z,12Z)-octadeca-9,12-dienyloxy)butan-2-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 the residue was partitioned between EtOAc (10 mL) and 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-(1-(dimethylamino)-4-((9Z,12Z)-octadeca-9,12-dienyloxy)butan-2-yloxy)-4-oxobutanoicacid, a thick, yellow oil, which was used without further purification.

Fuente

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