Triethylamine → Ethyl 2-(4-chloropyridin-3-ylamino)-2-oxoacetate

HRID 876799노트

반응식

HRID 876799 반응식
[Cl:1][C:2]1[CH:7]=[CH:6][N:5]=[CH:4][C:3]=1[NH2:8].CCN(CC)CC.Cl[C:17](=[O:23])[C:18]([O:20][CH2:21][CH3:22])=[O:19]>C1COCC1>[Cl:1][C:2]1[CH:7]=[CH:6][N:5]=[CH:4][C:3]=1[NH:8][C:17](=[O:23])[C:18]([O:20][CH2:21][CH3:22])=[O:19]

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 20884Ethoxalyl chlorideHCID 5819323-Amino-4-chloropyridine

생성물 1

HCID 67306384Ethyl 2-(4-chloropyridin-3-ylamino)-2-oxoacetate

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

To a solution of 4-chloropyridin-3-amine (R-1) (5 g, 38.9 mmol) in THF (100 mL) was added Et3N (4.72 g, 6.5 mL, 46.7 mmol), followed by ethyl 2-chloro-2-oxoacetate (5.84 g, 4.78 mL, 42.8 mmol) in THF (5 mL) dropwise at 0° C. The resulting mixture was stirred at room temperature for 1 h, and then concentrated in vacuo. The resulting residue was dissolved in EtOAc, and washed with aqueous saturated NaHCO3. The organic layer was separated, dried over Na2SO4, and concentrated to give the title compound, which was used for the next step without further purification. MS (m/z): 229 (M+1)+.

후처리

  1. concentrationconcentrated in vacuo
  2. dissolutionThe resulting residue was dissolved in EtOAc
  3. washwashed with aqueous saturated NaHCO3
  4. customThe organic layer was separated
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated

출처 및 근거

ORD 기록
ord-51fa38c81ca84ce98254cbe262dbee36
출처 데이터셋
uspto-grants-2015_03
특허 번호
US08987269B2

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