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Tributylvinyltin → 2,2-Dimethyl-N-(5-vinylpyridin-2-yl)-propionamide

HRID 1442765
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HRID 1442765 반응식
[CH2:1]([Sn](CCCC)(CCCC)C=C)[CH2:2]CC.Br[C:17]1[CH:18]=[CH:19][C:20]([NH:23][C:24](=[O:29])[C:25]([CH3:28])([CH3:27])[CH3:26])=[N:21][CH:22]=1>C1(C)C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH:1]([C:17]1[CH:18]=[CH:19][C:20]([NH:23][C:24](=[O:29])[C:25]([CH3:28])([CH3:27])[CH3:26])=[N:21][CH:22]=1)=[CH2:2]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 2

HCID 81998TributylvinyltinHCID 15461537N-(5-bromopyridin-2-yl)-2,2-dimethylpropanamide

생성물 1

HCID 217020792,2-Dimethyl-N-(5-vinylpyridin-2-yl)-propionamide수율 80.4%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 1140Toluene용매

실험 절차

Tributyl(vinyl)stannane (50 g, 0.16 mol), Pd(Ph3P)4 (3.3 g, 2.9 mmol) and a catalytic amount of 2,6-t-butyl-4-methylphenol was added to a solution of N-(5-bromopyridin-2-yl)pivalamide (36 g, 0.14 mol) in toluene. The reaction mixture was heated at reflux for 48 h. The solvent was evaporated in vacuo and the residue was purified by chromatography on silica gel (5% EtOAc in petroleum ether) to afford N-(5-vinylpyridin-2-yl)pivalamide (23 g, 80% yield). 1H NMR (CDCl3, 300 MHz) δ 8.24-8.20 (m, 2H), 8.02 (br s, 1H), 7.77 (dd, J=8.7 and 2.4, 1H), 6.65 (dd, J=17.7 and 10.8, 1H), 5.73 (d, J=17.7, 1H), 5.29 (d, J=10.8, 1H), 1.32 (s, 9 H).

후처리

  1. temperatureThe reaction mixture was heated
  2. temperatureat reflux for 48 h
  3. customThe solvent was evaporated in vacuo
  4. customthe residue was purified by chromatography on silica gel (5% EtOAc in petroleum ether)

출처 및 근거

ORD 기록
ord-1cc595f2d746453897ce942a1a7d0b2e
출처 데이터셋
uspto-grants-2010_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07659268B2

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