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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
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HRID 1506421 반응식
[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
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참가 물질

7

반응물 2

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

생성물 1

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

시약·촉매·용매 4

HCID 30318Osmium Tetroxide촉매HCID 2631-Butanol용매
HCID 962
Water
용매
HCID 8028Tetrahydrofuran용매

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-9cd1dd5d45154c3c976106477501da0d
출처 데이터셋
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09216972B2

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