Methyl 4-oxobutyrate → Dimethyl 3-formyl-4-hydroxyheptanedioate
반응식
[O:1]=[CH:2][CH2:3][CH2:4][C:5]([O:7][CH3:8])=[O:6]>CN(C=O)C>[CH:2]([CH:3]([CH:2]([OH:1])[CH2:3][CH2:4][C:5]([O:7][CH3:8])=[O:6])[CH2:4][C:5]([O:7][CH3:8])=[O:6])=[O:1]참가 물질
3
실험 절차
(S)-Proline (14.9 mg, 0.13 mmol) was added to a stirred solution of 16 (150 mg, 1.29 mmol) in THF (650 μl). The reaction mixture was stirred at r.t. for 14 h. The reaction mixture was purified directly by column chromatography, eluting with petrol/EtOAc (2:1), to give the aldehydes 17 and SI-3 (as a 3.6:1 mixture of anti:syn diastereoisomers, 91 mg, 61%) as a clear colourless oil. The reaction was also conducted on a 244 mg scale of aldehyde 16 in DMF which gave a 2:1 ratio of anti:syn diastereoisomers (100 mg, 41%).
후처리
- additionas a 3.6:1 mixture of anti
- customgave a 2:1 ratio of anti
출처 및 근거
- ORD 기록
- ord-e39d86288885447bbe8053d407512a87
- 출처 데이터셋
- uspto-grants-2016_01
- 특허 번호
- US09242954B2
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