Acetic Acid → HCID 59643291, 화합물

HRID 2251473노트

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HRID 2251473 반응식
[NH2:1][CH2:2][CH2:3][C:4]1[CH:17]=[CH:16][C:7]([O:8][C:9]([CH3:15])([CH3:14])[C:10]([O:12][CH3:13])=[O:11])=[CH:6][CH:5]=1.[CH:18]([C:21]1[O:25][N:24]=[C:23]([C:26]2[CH:33]=[CH:32][C:29]([CH:30]=O)=[CH:28][CH:27]=2)[N:22]=1)([CH3:20])[CH3:19].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C>ClCCl>[CH:18]([C:21]1[O:25][N:24]=[C:23]([C:26]2[CH:27]=[CH:28][C:29]([CH2:30][NH:1][CH2:2][CH2:3][C:4]3[CH:5]=[CH:6][C:7]([O:8][C:9]([CH3:15])([CH3:14])[C:10]([O:12][CH3:13])=[O:11])=[CH:16][CH:17]=3)=[CH:32][CH:33]=2)[N:22]=1)([CH3:20])[CH3:19]

참가 물질

6

반응물 4

HCID 176Acetic AcidHCID 5049666Sodium triacetoxyborohydrideHCID 21320401Methyl 2-[4-(2-aminoethyl)phenoxy]-2-methylpropanoateHCID 59643227HCID 59643227, 화합물

생성물 1

HCID 59643291HCID 59643291, 화합물수율 81.2%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A solution of methyl 2-[4-(2-aminoethyl)phenoxy]-2-methylpropanoate (1 g; 4.22 mmol) in dichloromethane (30 ml) was treated under nitrogen with 4-(5-isopropyl-1,2,4-oxadiazol-3-yl)benzaldehyde (0.96 g; 4.43 mmol), sodium triacetoxyborohydride (0.94 g; 4.43 mmol) and acetic acid (0.24 ml; 4.23 mmol). After stirring at rt overnight, the mixture was concentrated and partitioned between ethyl acetate and 1N NaOH. The organic phase was washed with brine, dried over sodium sulfate, filtered and concentrated. Purification by flash chromatography using an ethyl acetate-hexane gradient (20–70%) followed by a methanol-dichloromethane gradient (1–10%) afforded the title compound (1.5 g; 81% yield).

후처리

  1. concentrationthe mixture was concentrated
  2. custompartitioned between ethyl acetate and 1N NaOH
  3. washThe organic phase was washed with brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customPurification by flash chromatography

출처 및 근거

ORD 기록
ord-07e31dd665af4f2591b7f0a0893f73df
출처 데이터셋
uspto-grants-2008_01
특허 번호
US07319104B2

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