Methyl iodide → 1-Benzyl 2-methyl 4-methoxypyrrolidine-1,2-dicarboxylate

HRID 1852741

반응식

HRID 1852741 반응식
[OH:1][C@H:2]1[CH2:6][N:5]([C:7]([O:9][CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)=[O:8])[C@H:4]([C:17]([O:19][CH3:20])=[O:18])[CH2:3]1.[CH3:21]I.[H-].[Na+]>C1COCC1>[CH3:21][O:1][CH:2]1[CH2:6][N:5]([C:7]([O:9][CH2:10][C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=2)=[O:8])[CH:4]([C:17]([O:19][CH3:20])=[O:18])[CH2:3]1

참가 물질

5

반응물 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 6884112-Methyl 1-(phenylmethyl) (2S,4R)-4-hydroxy-1,2-pyrrolidinedicarboxylate

생성물 1

HCID 140361701-Benzyl 2-methyl 4-methoxypyrrolidine-1,2-dicarboxylate

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To a mixture of 1-benzyl 2-methyl (2S,4R)-4-hydroxypyrrolidine-1,2-dicarboxylate (500 mg, 1.79 mmol) in THF (6 mL) was added methyl iodide (0.385 mL) followed by sodium hydride (95 mg, 3.94 mmol). The reaction was stirred for 1 hour, then quenched with ice and diluted with diethyl ether. The organic layer was washed with water and brine, dried over sodium sulfate, filtered, and concentrated under reduced pressure to afford 1-benzyl 2-methyl 4-methoxypyrrolidine-1,2-dicarboxylate. MS ESI calc'd. for C15H19NO5 [M+H]+ 294. found 294.

후처리

  1. customquenched with ice
  2. additiondiluted with diethyl ether
  3. washThe organic layer was washed with water and brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-1b38606c3a13455d84faf346c314997f
출처 데이터셋
uspto-grants-2015_02
특허 번호
US08962611B2

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