Methyl morpholine oxide → 3-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-4,5-dihydronaphtho[1,2-c]isoxazole-7-carbaldehyde

HRID 1506499ノート

反応式

HRID 1506499 の反応式
[C:1]1([N:7]2[C:11]([C:12]([F:15])([F:14])[F:13])=[C:10]([C:16]3[O:20][N:19]=[C:18]4[C:21]5[C:26]([CH2:27][CH2:28][C:17]=34)=[CH:25][C:24]([CH:29]=C)=[CH:23][CH:22]=5)[CH:9]=[N:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C[N+]1([O-])CC[O:35]CC1.I([O-])(=O)(=O)=O.[Na+]>C1COCC1.O.[Os](=O)(=O)(=O)=O>[C:1]1([N:7]2[C:11]([C:12]([F:15])([F:14])[F:13])=[C:10]([C:16]3[O:20][N:19]=[C:18]4[C:21]5[C:26]([CH2:27][CH2:28][C:17]=34)=[CH:25][C:24]([CH:29]=[O:35])=[CH:23][CH:22]=5)[CH:9]=[N:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

参加物

7

反応物 3

HCID 82029Methyl morpholine oxideHCID 23667635Sodium periodateHCID 671704203-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-7-vinyl-4,5-dihydronaphtho[1,2-c]isoxazole

生成物 1

HCID 866699303-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-4,5-dihydronaphtho[1,2-c]isoxazole-7-carbaldehyde収率 100%

試薬・触媒・溶媒 3

HCID 30318Osmium Tetroxide触媒HCID 962Water溶媒2 回HCID 8028Tetrahydrofuran溶媒

実験手順

To a clear solution of 3-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-7-vinyl-4,5-dihydronaphtho[1,2-c]isoxazole (Preparation 89A, 0.15 g, 0.368 mmol) in THF (1.5 mL) were added NMO (50% in water, 0.092 mL, 0.442 mmol) and osmium tetroxide (4% in water, 0.068 mL, 0.011 mmol) at room temperature. The solution was vigorously stirred at room temperature overnight. Sodium periodate (0.102 g, 0.479 mmol) in water (0.5 mL) was added. The mixture was stirred vigorously at room temperature under nitrogen for 30 min. Water (5 mL) was added and the mixture was extracted with ethyl acetate (3×2 mL). The combined ethyl acetate extracts were dried (sodium sulfate), filtered through a pad of silica gel which was then rinsed with ethyl acetate and concentrated to give 3-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-4,5-dihydronaphtho[1,2-c]isoxazole-7-carbaldehyde (0.15 g, 0.366 mmol, 100% yield) as a green solid. The compound had an HPLC retention time=3.64 min. (condition C); LC/MS M+1=409.9.

後処理

  1. stirringThe mixture was stirred vigorously at room temperature under nitrogen for 30 min
  2. extractionthe mixture was extracted with ethyl acetate (3×2 mL)
  3. dry with materialThe combined ethyl acetate extracts were dried (sodium sulfate)
  4. filtrationfiltered through a pad of silica gel which
  5. washwas then rinsed with ethyl acetate
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-ef28532d12ac42b69afcbf9e5d90d7b8
出典データセット
uspto-grants-2015_12
特許番号
US09216972B2

反応ノート

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