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Diisopropylethylamine → 2-ethyl-4-methyl-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)oxazole-5-carboxamide

HRID 881734
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HRID 881734 반응식
[CH3:1][C:2]1([CH3:16])[C:6]([CH3:8])([CH3:7])[O:5][B:4]([C:9]2[CH:15]=[CH:14][C:12]([NH2:13])=[CH:11][CH:10]=2)[O:3]1.[CH2:17]([C:19]1[O:20][C:21]([C:25](O)=[O:26])=[C:22]([CH3:24])[N:23]=1)[CH3:18].CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C.[Cl-].[Na+].O.O>[CH2:17]([C:19]1[O:20][C:21]([C:25]([NH:13][C:12]2[CH:14]=[CH:15][C:9]([B:4]3[O:3][C:2]([CH3:16])([CH3:1])[C:6]([CH3:7])([CH3:8])[O:5]3)=[CH:10][CH:11]=2)=[O:26])=[C:22]([CH3:24])[N:23]=1)[CH3:18]
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참가 물질

8

반응물 4

HCID 81531DiisopropylethylamineHCID 27346204-(Tetramethyl-1,3,2-dioxaborolan-2-yl)anilineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 138352982-Ethyl-4-methyl-1,3-oxazole-5-carboxylic acid

생성물 1

HCID 867008392-ethyl-4-methyl-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)oxazole-5-carboxamide
수율 52.1%

시약·촉매·용매 3

HCID 962Water용매HCID 6228Dimethylformamide용매HCID 57417360Sodium chloride; water용매

실험 절차

To a stirred solution of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) aniline (360 mg, 1.643 mmol) in anhydrous DMF (8.2 mL) was added 2-ethyl-4-methyloxazole-5-carboxylic acid (306 mg, 1.972 mmol), followed by DIPEA (0.86 mL, 4.93 mmol) and the mixture was stirred at room temperature for 10 minutes. HATU (750 mg, 1.972 mmol) was added and the mixture was stirred at room temperature for 16 hour. The mixture was taken up in 1:1 mixture of brine and water (40 mL) and extracted with EtOAc (60 mL). The organic portion was dried over sodium sulfate, filtered and concentrated to afford a brown oil, which was purified by flash column chromatography to afford the title compound (305 mg, 52% yield) as a white solid. LC/MS, ESI-MS (+): 357.1, RT: 1.35 (Condition E).

후처리

  1. stirringthe mixture was stirred at room temperature for 16 hour
  2. extractionextracted with EtOAc (60 mL)
  3. dry with materialThe organic portion was dried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customto afford a brown oil, which
  7. customwas purified by flash column chromatography

출처 및 근거

ORD 기록
ord-176d063d63844eac8fbeb4ca21546df7
출처 데이터셋
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08993619B2

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