Sodium Carbonate → tert-Butyl 4-(2-formyl-8-morpholinoimidazo[1,2-a]pyrazin-5-yl)benzoate

HRID 1772722노트

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HRID 1772722 반응식
Br[C:2]1[N:7]2[CH:8]=[C:9]([CH:11]=[O:12])[N:10]=[C:6]2[C:5]([N:13]2[CH2:18][CH2:17][O:16][CH2:15][CH2:14]2)=[N:4][CH:3]=1.[C:19]([O:23][C:24]([C:26]1[CH:31]=[CH:30][C:29](B2OC(C)(C)C(C)(C)O2)=[CH:28][CH:27]=1)=[O:25])([CH3:22])([CH3:21])[CH3:20].C(=O)([O-])[O-].[Na+].[Na+]>O1CCOCC1.[CH-]1C=C(P(C2C=CC=CC=2)C2C=CC=CC=2)C=C1.[CH-]1C=C(P(C2C=CC=CC=2)C2C=CC=CC=2)C=C1.Cl[Pd]Cl.[Fe+2]>[CH:11]([C:9]1[N:10]=[C:6]2[C:5]([N:13]3[CH2:18][CH2:17][O:16][CH2:15][CH2:14]3)=[N:4][CH:3]=[C:2]([C:29]3[CH:30]=[CH:31][C:26]([C:24]([O:23][C:19]([CH3:20])([CH3:21])[CH3:22])=[O:25])=[CH:27][CH:28]=3)[N:7]2[CH:8]=1)=[O:12]

참가 물질

6

반응물 3

HCID 10340Sodium CarbonateHCID 43767661,1-Dimethylethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoateHCID 1177281135-Bromo-8-morpholinoimidazo[1,2-a]pyrazine-2-carbaldehyde

생성물 1

HCID 117733763tert-Butyl 4-(2-formyl-8-morpholinoimidazo[1,2-a]pyrazin-5-yl)benzoate

시약·촉매·용매 2

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매HCID 312751,4-Dioxane용매

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온도
80 °C

실험 절차

A mixture of compound 2a (100.0 mg, 0.320 mmol), 4-(tert-butoxycarbonyl)benzeneboronic acid pinacol ester (117 mg, 0.390 mmol), dichloro(1,1′-bis(diphenylphosphino)ferrocene)palladium(II) dichloromethane adduct (24.0 mg, 0.0320 mmol), and 1M sodium carbonate (1.61 mL, 1.61 mmol) in dioxane (6 mL) was purged with Argon gas. The resulting mixture was heated to 80° C. for 18 h. After the mixture was cooled, it was filtered through a pad of diatomaceous earth. The filtrate was concentrated under reduced pressure and the resulting residue was purified by Preparative TLC (EtOAc/CH2Cl2; 2:3, v/v) to give compound 81a. Mass Spectrum (LCMS, ESI pos.): Calcd. for C22H25N4O4: 409.2 (M+H). found: 409.3.

후처리

  1. customwas purged with Argon gas
  2. temperatureAfter the mixture was cooled
  3. filtrationit was filtered through a pad of diatomaceous earth
  4. concentrationThe filtrate was concentrated under reduced pressure
  5. customthe resulting residue was purified by Preparative TLC (EtOAc/CH2Cl2

출처 및 근거

ORD 기록
ord-249d72cb477a4bef830b291be3e58507
출처 데이터셋
uspto-grants-2016_02
특허 번호
US09249163B2

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