Benzylamine → Tert-butyl 2-(benzylamino)acetate

HRID 559342노트

반응식

HRID 559342 반응식
Br[CH2:2][C:3]([O:5][C:6]([CH3:9])([CH3:8])[CH3:7])=[O:4].[CH2:10]([NH2:17])[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1>C(#N)C>[C:6]([O:5][C:3](=[O:4])[CH2:2][NH:17][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)([CH3:9])([CH3:8])[CH3:7]

참가 물질

4

반응물 2

HCID 7504BenzylamineHCID 79177tert-Butyl bromoacetate

생성물 1

HCID 11020442Tert-butyl 2-(benzylamino)acetate수율 108%

시약·촉매·용매 1

HCID 6342Acetonitrile용매2회

반응 조건

온도
2.5 °C

실험 절차

40 g (205 mmol, 1 equiv.) tert-butyl bromoacetate were dissolved in 200 ml acetonitrile. The solution was cooled to 0-5° C. and 47 g benzylamine (2.14 equiv.) in solution in 90 ml acetonitrile were added over 15 min. After 5 min, the reaction mixture was warmed to room temperature and stirred for 3 h (IPC by GC). The resulting suspension was filtered and evaporated to constant weight to give 49 g of a yellow oil. The oil was dissolved in 200 ml heptane and washed 3 times with 50 ml aq. sodium hydrogencarbonate solution. The organic phase was dried over sodium sulfate, filtered and evaporated to give 35.8 g of the crude product. Distillation under high vacuum afforded 27.2 g of the title product (95% pure by GC).

후처리

  1. temperaturethe reaction mixture was warmed to room temperature
  2. filtrationThe resulting suspension was filtered
  3. customevaporated to constant weight

출처 및 근거

ORD 기록
ord-c298f09619434e7fbdd838ae0a955b47
출처 데이터셋
uspto-grants-2011_11
특허 번호
US08063042B2

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