Cesium carbonate → Di-tert-butyl {6'-[(3-methoxypyridin-2-yl)amino]dispiro[1,3-oxazole-4,4'-chromene-3',3''-oxetan]-2-yl}imidodicarbonate

HRID 873700

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HRID 873700 반응식
Br[C:2]1[CH:3]=[C:4]2[C:31](=[CH:32][CH:33]=1)[O:30][CH2:29][C:25]1([CH2:28][O:27][CH2:26]1)[C:5]12[CH2:9][O:8][C:7]([N:10]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])=[N:6]1.[CH3:34][O:35][C:36]1[C:37]([NH2:42])=[N:38][CH:39]=[CH:40][CH:41]=1.CC1(C)C2C=CC=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=2OC2C1=CC=CC=2P(C1C=CC=CC=1)C1C=CC=CC=1.C([O-])([O-])=O.[Cs+].[Cs+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O1CCOCC1>[CH3:34][O:35][C:36]1[C:37]([NH:42][C:2]2[CH:3]=[C:4]3[C:31](=[CH:32][CH:33]=2)[O:30][CH2:29][C:25]2([CH2:28][O:27][CH2:26]2)[C:5]23[CH2:9][O:8][C:7]([N:10]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])=[N:6]2)=[N:38][CH:39]=[CH:40][CH:41]=1

참가 물질

7

반응물 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 99203842-Amino-3-methoxypyridineHCID 86724239Di-tert-butyl (6'-bromodispiro[1,3-oxazole-4,4'-chromene-3',3''-oxetan]-2-yl)imidodicarbonate

생성물 1

HCID 86724238Di-tert-butyl {6'-[(3-methoxypyridin-2-yl)amino]dispiro[1,3-oxazole-4,4'-chromene-3',3''-oxetan]-2-yl}imidodicarbonate

시약·촉매·용매 2

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 312751,4-Dioxane용매

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온도
100 °C

실험 절차

A mixture of di-tert-butyl (6′-bromodispiro[1,3-oxazole-4,4′-chromene-3′,3″-oxetan]-2-yl)imidodicarbonate (300 mg, 0.571 mmol), 3-methoxypyridin-2-amine (354 mg, 2.86 mmol), tris(dibenzylideneacetone)dipalladium(0) (105 mg, 0.114 mmol), (9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) (198 mg, 0.343 mmol), Cs2CO3 (558 mg, 1.71 mmol) and dioxane (15 mL) was stirred for 48 hours at 100° C. The reaction mixture was cooled down to ambient temperature, and partitioned with CHCl3 and water. The organic layer was dried over Na2SO4, and filtered. The filtrate was concentrated at reduced pressure, to give crude di-tert-butyl {6′-[(3-methoxypyridin-2-yl)amino]dispiro[1,3-oxazole-4,4′-chromene-3′,3″-oxetan]-2-yl}imidodicarbonate, which was used for the next reaction without further purification.

후처리

  1. temperatureThe reaction mixture was cooled down to ambient temperature
  2. custompartitioned with CHCl3 and water
  3. dry with materialThe organic layer was dried over Na2SO4
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated at reduced pressure

출처 및 근거

ORD 기록
ord-8168d583c1fc4a36b941a44fc62f8107
출처 데이터셋
uspto-grants-2015_03
특허 번호
US08975415B2

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