Reacción #1483104

ord-ca138fd8eca344fd827edd924a8107ff

Ecuación de reacción

CC(Br)C(=O)Br
2-bromo propionyl bromide
CCCCCCCCCCCCO
1-decanol
CCCCCCCCCCCCO
1-dodecanol
CCN(CC)CC
triethylamine
CCCCCCCCCCCCOC(=O)C(C)Br
59
Rendimiento 94.0%
CCCCCCCCCCCCOC(=O)C(C)Br
Dodecyl 2-bromopropanoate
Rendimiento 94.0%

Disolventes

Condiciones de reacción

Temperatura
57.5°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    OtroThe reaction mixture was quenched with saturated sodium bicarbonate solution
  2. 2
    workup.STIRRINGstirred for 15 minutes at 25-35° C
  3. 3
    OtroThe aqueous and organic layers were separated
  4. 4
    Lavadothe organic layer was washed with brine
  5. 5
    Lavadothe combined organic layers were washed with brine solution
  6. 6
    SecadoThe organic layer was dried over Na2SO4
  7. 7
    Concentraciónconcentrated under vacuum

Procedimiento

To a stirred solution of 1-decanol 2 (10 g, 53.7 mmol) in toluene (100 mL) was added triethylamine (7.5 mL, 53.7 mmol)) followed by 2-bromo propionyl bromide 58 (12.7 g, 59.1 mmol) at 5-10° C. The reaction mixture was stirred for 3 hours at 55-60° C.; the reaction was monitored by TLC. The reaction mixture was quenched with saturated sodium bicarbonate solution and stirred for 15 minutes at 25-35° C. The aqueous and organic layers were separated, the organic layer was washed with brine, and the combined organic layers were washed with brine solution. The organic layer was dried over Na2SO4 and concentrated under vacuum to afford crude 59 (16.2 g, yield: 94%) as a liquid.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08900625B2uspto-grants-2014_12