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Triethylamine → (E)-3-(1-ethyl 3,3,5-trimethyl 2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-7-yl) acrylic acid ethyl ester

HRID 68945
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HRID 68945 반응식
[CH2:1]([N:3]1[C:9](=[O:10])[C:8]([CH3:12])([CH3:11])[C:7](=[O:13])[N:6]([CH3:14])[C:5]2[CH:15]=[C:16](OS(C(F)(F)F)(=O)=O)[CH:17]=[CH:18][C:4]1=2)[CH3:2].[C:27]([O:31][CH2:32][CH3:33])(=[O:30])[CH:28]=[CH2:29].[Cl-].[Li+].C(N(CC)CC)C>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.CN(C=O)C>[CH2:32]([O:31][C:27](=[O:30])/[CH:28]=[CH:29]/[C:16]1[CH:17]=[CH:18][C:4]2[N:3]([CH2:1][CH3:2])[C:9](=[O:10])[C:8]([CH3:11])([CH3:12])[C:7](=[O:13])[N:6]([CH3:14])[C:5]=2[CH:15]=1)[CH3:33]
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참가 물질

7

반응물 4

HCID 8471TriethylamineHCID 8821Ethyl AcrylateHCID 433294Lithium ChlorideHCID 86670475Trifluoromethanesulfonic acid 1-ethyl-3,3,5-trimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-7-yl ester

생성물 1

HCID 66960494(E)-3-(1-ethyl 3,3,5-trimethyl 2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-7-yl) acrylic acid ethyl ester수율 103.1%

시약·촉매·용매 2

HCID 178418476HCID 178418476, 화합물촉매HCID 6228Dimethylformamide용매

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온도
180 °C

실험 절차

Trifluoromethane sulfonic acid 1-ethyl-3,3,5-trimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-7-yl ester (0.40 g), ethyl acrylate (0.13 g), dichlorobis(triphenylphosphine)palladium (II) (35 mg), lithium chloride (64 mg), and triethylamine (0.19 ml) were added to DMF (4 ml). The mixture was heated at 180° C. (microwave reactor) for 20 minutes. The reaction liquid was cooled to room temperature, and subjected to celite filtration. The filtrate was condensed under reduced pressure, and the residue was purified by silica gel column chromatography (hexane:ethyl acetate=70:30→30:70). The purified product was condensed under reduced pressure to give the title compound (0.36 g) as a pale yellow solid.

후처리

  1. customThe reaction liquid
  2. temperaturewas cooled to room temperature
  3. filtrationsubjected to celite filtration
  4. customcondensed under reduced pressure
  5. customthe residue was purified by silica gel column chromatography (hexane:ethyl acetate=70:30→30:70)
  6. customcondensed under reduced pressure

출처 및 근거

ORD 기록
ord-3f1cc1ac4ce94ccd88111b5c7eccc670
출처 데이터셋
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08822453B2

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