Chloride → HCID 45115680、化合物
反応式
[N:1]1[CH:6]=[CH:5][N:4]=[CH:3][C:2]=1[C:7]([O:9][C:10]([CH3:13])([CH3:12])[CH3:11])=[O:8].[Cl-]>CO>[NH:1]1[CH2:6][CH2:5][NH:4][CH2:3][C@H:2]1[C:7]([O:9][C:10]([CH3:13])([CH3:12])[CH3:11])=[O:8]参加物
4
実験手順
Analogously to Example 4, 0.52 g (2.85 mmol) of tert-butyl pyrazinecarboxylate (prepared according to Example 2), 25.3 mg (54 μmol) of bicyclo[2.2.1 ]hepta-2,5-dienerhodium(I) chloride dimer and 61.5 mg (113.3 μmol) of 1-[1(R)-(di-tert-butylphosphino)ethyl]-2(S)- (diphenylphosphino)ferrocene were hydrogenated for 20 hours in 10 ml of methanol at 70° C. and 50 bar. A conversion of 67 percent was determined by NMR. The ee value was determined by hydrolyzing the ester (see Example 8).
出典と根拠
- ORDレコード
- ord-e9db4f1f2d1d4136be49c4beea417404
- 出典データセット
- uspto-grants-1999_08
- 特許番号
- US05945534
反応ノート
読み込み中…