Реакция #85428

ord-5c9400fd974a4f1f90eb40d0012a7f7a

Растворители

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    ДругоеThe solvent was evaporated in vacuo
  2. 2
    Другоеthe residue partitioned between dichloromethane and saturated aqueous sodium bicarbonate
  3. 3
    СушкаThe organic layer was dried over sodium sulfate
  4. 4
    Другоеthe solvent evaporated in vacuo
  5. 5
    Другоеto afford compound 125-D as a colorless solid (1.86 g, 93%)

Методика

A solution of compound 125-C (2.7 g, 6.9 mmol) in dichloromethane (40 mL) and trifluoroacetic acid (40 mL) was stirred at rt for 4 h. The solvent was evaporated in vacuo, and the residue partitioned between dichloromethane and saturated aqueous sodium bicarbonate. The organic layer was dried over sodium sulfate, and the solvent evaporated in vacuo to afford compound 125-D as a colorless solid (1.86 g, 93%). 1H-NMR (CDCl3): δ 2.16 (s, 3H), 4.37 (s, 2H), 7.09-7.32 (m, 5H), 7.40 (d, 1H), 7.60 (d, 1H); MS: m/z 290.1 (MH+).

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US09434711B2uspto-grants-2016_09