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

HRID 881732
ノート
印刷プレビュー

反応式

HRID 881732 の反応式
[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.[CH3:17][C:18]1[O:19][C:20]([C:26]([F:29])([F:28])[F:27])=[C:21]([C:23](O)=[O:24])[N:22]=1.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>[CH3:17][C:18]1[O:19][C:20]([C:26]([F:29])([F:27])[F:28])=[C:21]([C:23]([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:24])[N:22]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 81531DiisopropylethylamineHCID 27346204-(Tetramethyl-1,3,2-dioxaborolan-2-yl)anilineHCID 27756512-methyl-5-(trifluoromethyl)-1,3-oxazole-4-carboxylic AcidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)

生成物 1

HCID 86700837
2-methyl-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-5-(trifluoromethyl)oxazole-4-carboxamide
収率 47%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒HCID 57417360Sodium chloride; water溶媒

実験手順

To a stirred solution of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) aniline (420 mg, 1.917 mmol) in anhydrous DMF (9.6 mL) was added 2-methyl-5-(trifluoromethyl)oxazole-4-carboxylic acid (449 mg, 2.300 mmol) followed by DIPEA (1.0 mL, 5.75 mmol) and the mixture was stirred at room temperature for 10 minutes. HATU (875 mg, 2.300 mmol) was added and the mixture stirred at room temperature for 16 hours. The mixture was taken up in 1:1 mixture of brine and water and extracted with EtOAc. 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 as pale yellow solid after drying (360 mg, 47% yield). LC/MS, ESI-MS(+): 397.1, RT: 1.49 (Condition E).

後処理

  1. stirringthe mixture stirred at room temperature for 16 hours
  2. extractionextracted with EtOAc
  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

出典と根拠

ORDレコード
ord-acddda486ab8432eba5665004956429a
出典データセット
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08993619B2

反応ノート

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