Sodium Carbonate → tert-Butyl 6-(5-carbamoylpyridin-2-yl)-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate

HRID 38478

반응식

HRID 38478 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11]2([CH2:22][C:21](=[O:23])[C:20]3[C:15](=[CH:16][CH:17]=[C:18](B4OC(C)(C)C(C)(C)O4)[CH:19]=3)[O:14]2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl[C:34]1[CH:42]=[CH:41][C:37]([C:38]([NH2:40])=[O:39])=[CH:36][N:35]=1.C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.C(Cl)(Cl)Cl.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:38]([C:37]1[CH:41]=[CH:42][C:34]([C:18]2[CH:19]=[C:20]3[C:15](=[CH:16][CH:17]=2)[O:14][C:11]2([CH2:12][CH2:13][N:8]([C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:7])[CH2:9][CH2:10]2)[CH2:22][C:21]3=[O:23])=[N:35][CH:36]=1)(=[O:39])[NH2:40]

참가 물질

8

반응물 3

HCID 10340Sodium CarbonateHCID 804566-ChloronicotinamideHCID 579309611'-Tert-butoxycarbonyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)spiro[chroman-2,4'-piperidin]-4-one

생성물 1

HCID 58208682tert-Butyl 6-(5-carbamoylpyridin-2-yl)-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate

시약·촉매·용매 4

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매HCID 6212Chloroform용매HCID 312751,4-Dioxane용매

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온도
100 °C

실험 절차

1′-tert-butoxycarbonyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)spiro[chroman-2,4′-piperidin]-4-one (40.0 g, 90.0 mmol), 6-chloronicotinamide (17.0 g, 108 mmol), Pd(PPh3)4 (5.21 g, 4.51 mmol), and aqueous 2M Na2CO3 (100 ml) solution were suspended in dioxane (300 ml) and heated at 100° C. for 16 h. The reaction mixture was diluted with CHCl3 and H2O, the aqueous layer was extracted with CHCl3. The combined organic layer was washed with brine, dried over MgSO4 and silicagel. The desiccant was removed through celite filtration and the filtrate was concentrated under reduced pressure. The resulting residue was purified by crystallization (CHCl3-EtOAc) to obtain the intended compound as a colorless solid.

후처리

  1. extractionthe aqueous layer was extracted with CHCl3
  2. washThe combined organic layer was washed with brine
  3. dry with materialdried over MgSO4 and silicagel
  4. customThe desiccant was removed through celite filtration
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customThe resulting residue was purified by crystallization (CHCl3-EtOAc)

출처 및 근거

ORD 기록
ord-71529f5fb4fa4deb990dc0de44b47136
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08524730B2

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