Reaktion #51881

ord-d7e27b3018814c2284770304dd5b8419

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigeTo a flask equipped with magnetic stirrer
  2. 2
    Filtrationthe reaction mixture filtered through celite
  3. 3
    Waschenwashing with dichloromethane (50 ml)
  4. 4
    EinengenThe filtrate was concentrated in vacuo

Vorschrift

To a flask equipped with magnetic stirrer was added 4-(2,4-bis{[tert-butyl(dimethyl)silyl]oxy}phenyl)cyclohexanone (817 mg, 1.88 mmol). Dichloromethane (50 ml) was added followed by benzylamine (0.82 ml, 7.52 mmol) and activated 4 Å molecular sieves (10.0 g). The reaction mixture was stirred vigorously for 15 hr, then dichloromethane (50 ml) was added and the reaction mixture filtered through celite, washing with dichloromethane (50 ml). The filtrate was concentrated in vacuo affording the title compound (1.00 g, 86%) as a yellow oil. δH(CDCl3) 0.19 (6H, s), 0.26 (6H, s), 0.98 (9H, s), 1.03 (9H, s), 1.51 (1H, m), 1.72 (1H, m), 2.03 (2H, m), 2.45 (1H, m), 2.60 (1H, m), 3.04 (1H, m), 3.22 (1H, m), 4.55 (1H, d), 4.60 (1H, d), 6.31 (1H, d), 6.41 (1H, dd), 6.93 (1H, d), 7.33 (5H, m).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06852747B2uspto-grants-2005_02