Methylamine → 5-Nitrooxy-pentanoic acid methylamide

HRID 1625584노트

반응식

HRID 1625584 반응식
[N+:1]([O:4][CH2:5][CH2:6][CH2:7][CH2:8][C:9]([OH:11])=O)([O-:3])=[O:2].[CH2:12]([N:14](CC)CC)C.ClC(OCC)=O.CN.S([O-])([O-])(=O)=O.[Na+].[Na+]>ClCCl>[CH3:12][NH:14][C:9](=[O:11])[CH2:8][CH2:7][CH2:6][CH2:5][O:4][N+:1]([O-:3])=[O:2]

참가 물질

7

반응물 5

HCID 6329MethylamineHCID 8471TriethylamineHCID 10928Ethyl chloroformateHCID 24436Sodium SulfateHCID 117884725-nitrooxypentanoic Acid

생성물 1

HCID 716186675-Nitrooxy-pentanoic acid methylamide수율 47%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

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온도
0 °C

실험 절차

To a solution of compound 2 (1.60 g, 1.0 eq) in dry dichloromethane (20.0 mL) cooled to 0° C. was added triethylamine (1.70 mL, 1.2 eq) followed by ethyl chloroformate (1.10 mL, 1.1 eq). The reaction mixture was stirred at 0° C. for 45 minutes and 40% aqueous methyl amine (20.0 mL) was added. The solution was stirred from 0° C. to RT for 18 hours and sodium sulphate was added to dry the reaction mixture. The resulting mixture was filtered off and the filtrate was concentrated under vacuum. The residue was adsorbed on silica gel and purified by flash chromatography [Biotage®, dichloromethane/methanol 100/0→97/3 (15CV*)] affording compound 3 as a colourless liquid (0.84 g, yield=47%).

후처리

  1. stirringThe solution was stirred from 0° C. to RT for 18 hours
  2. customto dry the reaction mixture
  3. filtrationThe resulting mixture was filtered off
  4. concentrationthe filtrate was concentrated under vacuum
  5. custompurified by flash chromatography [Biotage®, dichloromethane/methanol 100/0→97/3 (15CV*)]

출처 및 근거

ORD 기록
ord-5b1d2ee120794cc3b6c9b59b5baa7bed
출처 데이터셋
uspto-grants-2014_07
특허 번호
US08784871B2

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