Réaction #85806

ord-1d1e0032d13f4159b2fc306ea574db4d

Solvants

Conditions de réaction

Température
-72°CELSIUS
Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    workup.ADDITIONAfter the completion of the addition
  2. 2
    Températureslowly warmed up
  3. 3
    workup.STIRRINGstirred at the ambient temperature overnight
  4. 4
    Autrethe volatiles were removed under reduced pressure

Mode opératoire

A solution of 5-bromo-N,N-dimethylpyridin-2-amine (500 mg, 2.5 mmol) in THF (10 mL) was treated with n-BuLi (1.2 mL, 3 mmol) at −72° C. for 2 hours. Triisopropyl borate (705 mg, 3.75 mmol) was then added dropwise. After the completion of the addition, the mixture was stirred at −72° C. for an additional 1 hour and slowly warmed up and stirred at the ambient temperature overnight. MeOH was carefully added, and the volatiles were removed under reduced pressure to give the title compound. MS (m/z): 167 (M+H)+.

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US09434726B2uspto-grants-2016_09