Potassium Phosphate, Tribasic → methyl 3-(4-isopropylpyrimidin-2-yl)-1-tosyl-1H-indole-5-carboxylate

HRID 634205

반응식

HRID 634205 반응식
CC1(C)C(C)(C)OB([C:9]2[C:17]3[C:12](=[CH:13][CH:14]=[C:15]([C:18]([O:20][CH3:21])=[O:19])[CH:16]=3)[N:11]([S:22]([C:25]3[CH:31]=[CH:30][C:28]([CH3:29])=[CH:27][CH:26]=3)(=[O:24])=[O:23])[CH:10]=2)O1.Cl[C:34]1[N:39]=[C:38]([CH:40]([CH3:42])[CH3:41])[CH:37]=[CH:36][N:35]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].C1(P(C2CCCCC2)C2C=CC=CC=2C2C(C(C)C)=CC(C(C)C)=CC=2C(C)C)CCCCC1>O1CCOCC1.O.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]>[CH:40]([C:38]1[CH:37]=[CH:36][N:35]=[C:34]([C:9]2[C:17]3[C:12](=[CH:13][CH:14]=[C:15]([C:18]([O:20][CH3:21])=[O:19])[CH:16]=3)[N:11]([S:22]([C:25]3[CH:26]=[CH:27][C:28]([CH3:29])=[CH:30][CH:31]=3)(=[O:23])=[O:24])[CH:10]=2)[N:39]=1)([CH3:42])[CH3:41]

참가 물질

8

반응물 4

HCID 62657Potassium Phosphate, TribasicHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 249019162-Chloro-4-isopropylpyrimidineHCID 68328028methyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-indole-5-carboxylate

생성물 1

HCID 68327948methyl 3-(4-isopropylpyrimidin-2-yl)-1-tosyl-1H-indole-5-carboxylate수율 75.1%

시약·촉매·용매 3

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 962Water용매HCID 312751,4-Dioxane용매

반응 조건

온도
100 °C

실험 절차

A brown mixture of methyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-indole-5-carboxylate (1.85 g, 4.06 mmol), 2-chloro-4-isopropylpyrimidine (0.700 g, 4.47 mmol) [CombiPhos Catalyst Inc.], potassium phosphate (2.59 g, 12.19 mmol), Pd2(dba)3 (0.15 g, 0.16 mmol), and dicyclohexyl(2′,4′,6′-triisopropylbiphenyl-2-yl)phosphine (X-Phos) (0.15 g, 0.32 mmol) in dioxane (15 mL) and H2O (3.00 mL) was purged with argon then heated in an oil bath at 100° C. for 3 h. The reaction was cooled to RT, diluted with EtOAc (100 mL), washed with NaOH (5 mL of 0.5 N) followed by brine (5 mL). The organic solution was dried and concentrated. Chromatographic purification of the brown residue (20-80% EtOAc/Hex) furnished methyl 3-(4-isopropylpyrimidin-2-yl)-1-tosyl-1H-indole-5-carboxylate (1.37 g, 75%) as a light-yellow solid. This material was used in next step without further purification. MS (ESI, pos. ion) m/z: 450.0 (M+1).

후처리

  1. customwas purged with argon
  2. temperatureThe reaction was cooled to RT
  3. additiondiluted with EtOAc (100 mL)
  4. washwashed with NaOH (5 mL of 0.5 N)
  5. customThe organic solution was dried
  6. concentrationconcentrated
  7. customChromatographic purification of the brown residue (20-80% EtOAc/Hex)

출처 및 근거

ORD 기록
ord-8534abe0469247d18d77a4e31587541a
출처 데이터셋
uspto-grants-2016_04
특허 번호
US09321756B2

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