Water → HCID 15086767, 화합물

HRID 1534539노트

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HRID 1534539 반응식
[CH3:1][C:2](C)([O-])[CH3:3].[K+].[CH3:7][C:8]([Si:11]([CH3:20])([CH3:19])[O:12][C@H:13]1[CH2:17][CH2:16][NH:15][C:14]1=[O:18])([CH3:10])[CH3:9].C(Br)C#C.O>CN(C)C=O.C1(C)C=CC=CC=1>[CH3:10][C:8]([Si:11]([CH3:20])([CH3:19])[O:12][C@H:13]1[CH2:17][CH2:16][N:15]([CH2:3][C:2]#[CH:1])[C:14]1=[O:18])([CH3:7])[CH3:9]

참가 물질

7

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HCID 962WaterHCID 7842Propargyl bromideHCID 10584804(S)-3-((tert-Butyldimethylsilyl)oxy)pyrrolidin-2-oneHCID 23665647Potassium tert-butoxide

생성물 1

HCID 15086767HCID 15086767, 화합물

시약·촉매·용매 2

HCID 1140Toluene용매HCID 6228Dimethylformamide용매

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온도
-20 °C

실험 절차

A solution of 11.5 g of potassium tert-butoxide in 300 ml of dimethylformamide was cooled to -20° C. An 18 g portion of (S)-3-[[(1,1-dimethylethyl)dimethylsilyl]-oxy]-2-pyrrolidinone was added and the mixture stirred at -20° C. for 30 minutes. A 12 ml portion of 80% propargyl bromide in toluene was added and the reaction was allowed to warm to room temperature and was stirred for 1 hour. Water was added and the mixture was extracted with 5×100 ml of ether and 3×100ml of dichloromethane. The extracts were combined, backwashed with water, dried and concentrated in vacuo, giving 15.8 g of (S)-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-1-(2-propynyl)-2-pyrrolidinone [α]D26° =-44°-(dichloromethane); mp 35°-36° C.

후처리

  1. temperatureto warm to room temperature
  2. stirringwas stirred for 1 hour
  3. extractionthe mixture was extracted with 5×100 ml of ether and 3×100ml of dichloromethane
  4. customdried
  5. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-0c140d9d62524b56890edaa3202c26a8
출처 데이터셋
uspto-grants-1992_02
특허 번호
US05089518

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