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Sodium periodate → 2-(3-Phenyl-4-(trifluoromethyl)isoxazol-5-yl)-4,5-dihydronaphtho[2,1-d]thiazole-7-carbaldehyde

HRID 1506421
ノート
印刷プレビュー

反応式

HRID 1506421 の反応式
[C:1]1([C:7]2[C:11]([C:12]([F:15])([F:14])[F:13])=[C:10]([C:16]3[S:17][C:18]4[C:28]5[C:23](=[CH:24][C:25]([CH:29]=C)=[CH:26][CH:27]=5)[CH2:22][CH2:21][C:19]=4[N:20]=3)[O:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.I([O-])(=O)(=O)=[O:32].[Na+]>C1COCC1.C(O)CCC.O.[Os](=O)(=O)(=O)=O>[C:1]1([C:7]2[C:11]([C:12]([F:15])([F:14])[F:13])=[C:10]([C:16]3[S:17][C:18]4[C:28]5[C:23](=[CH:24][C:25]([CH:29]=[O:32])=[CH:26][CH:27]=5)[CH2:22][CH2:21][C:19]=4[N:20]=3)[O:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 2

HCID 23667635Sodium periodateHCID 671705843-Phenyl-4-(trifluoromethyl)-5-(7-vinyl-4,5-dihydronaphtho[2,1-d]thiazol-2-yl)isoxazole

生成物 1

HCID 866699012-(3-Phenyl-4-(trifluoromethyl)isoxazol-5-yl)-4,5-dihydronaphtho[2,1-d]thiazole-7-carbaldehyde

試薬・触媒・溶媒 4

HCID 30318Osmium Tetroxide触媒HCID 2631-Butanol溶媒
HCID 962
Water
溶媒
HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of 3-phenyl-4-(trifluoromethyl)-5-(7-vinyl-4,5-dihydronaphtho[2,1-d]thiazol-2-yl)isoxazole (Preparation 56E, 0.350 g, 0.825 mmol) in THF (7.5 ml) at room temperature, was added a solution of osmium tetroxide, (2.5% in butanol, 1.7 ml, 0.017 mmol) followed by sodium periodate (0.265 g, 1.238 mmol) as a solution in 7.5 ml of water. After stirring for 90 min it was quenched with a saturated solution of sodium bisulfate. The dark colored suspension was filtered through Celite. The filter cake was washed with EtOAc. The combined EtOAc layers were washed with water, dried over anhydrous MgSO4, concentrated, and chromatographed to yield the 2-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-4,5-dihydronaphtho[2,1-d]thiazole-7-carbaldehyde as an orange colored solid. The product had an LC ret. time=3.136 min. (condition: Start % B=50, Final % B=100, Gradient Time=4 min, Flow Rate=4 ml/min, Wavelength=220, Solvent Pair=MeOH−H2O−TFA; Solvent A=10% MeOH−90% H2O−0.1% TFA; Solvent B=90% MeOH−10% H2O−0.1% TFA; Column 1=1: Waters Sunfire C18 4.6×50 mm (4 min. grad)); LC/MS M+1=427.03.

後処理

  1. customwas quenched with a saturated solution of sodium bisulfate
  2. filtrationThe dark colored suspension was filtered through Celite
  3. washThe filter cake was washed with EtOAc
  4. washThe combined EtOAc layers were washed with water
  5. dry with materialdried over anhydrous MgSO4
  6. concentrationconcentrated
  7. customchromatographed

出典と根拠

ORDレコード
ord-9cd1dd5d45154c3c976106477501da0d
出典データセット
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09216972B2

反応ノート

読み込み中…

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