Reacción #1135800

ord-375aee307591444b8eec3f0e06405b4a

Ecuación de reacción

Cc1c(N)cccc1Br
1-bromo-2-methyl-3-aminobenzene
O=C(OC(Cl)(Cl)Cl)OC(Cl)(Cl)Cl
triphosgene
Cc1c(Br)cccc1N=C=O
1-bromo-3-isocyanato-2-methylbenzene
Rendimiento 106.3%

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturawith heating
  2. 2
    Temperaturaunder reflux for three hours
  3. 3
    Temperaturato cool
  4. 4
    Concentraciónwere concentrated under reduced pressure

Procedimiento

A mixture of 1-bromo-2-methyl-3-aminobenzene 25.0 g, triphosgene 60.0 g and toluene 400 mL was stirred with heating under reflux for three hours. The reaction mixtures after standing to cool were concentrated under reduced pressure to give 1-bromo-3-isocyanato-2-methylbenzene 30.3 g.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US09380782B2uspto-grants-2016_07