2,3-Dihydro-1,4-benzodioxin-6-carbaldehyde → Tert-butyl 4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)-4-methylpiperidine-1-carboxylate

HRID 39674

반응식

HRID 39674 반응식
[NH2:1][C:2]1([CH3:15])[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:4][CH2:3]1.[O:16]1[C:21]2[CH:22]=[CH:23][C:24]([CH:26]=O)=[CH:25][C:20]=2[O:19][CH2:18][CH2:17]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>C(Cl)(Cl)Cl.C(O)(=O)C.ClCCl>[O:16]1[C:21]2[CH:22]=[CH:23][C:24]([CH2:26][NH:1][C:2]3([CH3:15])[CH2:3][CH2:4][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:6][CH2:7]3)=[CH:25][C:20]=2[O:19][CH2:18][CH2:17]1

참가 물질

8

반응물 4

HCID 2481272,3-Dihydro-1,4-benzodioxin-6-carbaldehydeHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydride2회HCID 11310432tert-Butyl 4-amino-4-methylpiperidine-1-carboxylate

생성물 1

HCID 59398035Tert-butyl 4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)-4-methylpiperidine-1-carboxylate

시약·촉매·용매 3

HCID 176Acetic Acid용매HCID 6212Chloroform용매HCID 6344Dichloromethane용매

실험 절차

To 5 mL of a dichloromethane solution containing 0.50 g of tert-butyl 4-amino-4-methylpiperidine-1-carboxylate, 0.38 g of 2,3-dihydro-1,4-benzodioxin-6-carbaldehyde and 0.13 mL of acetic acid were added, and the mixture was stirred at room temperature for 3 hours. The reaction mixture was added with 0.74 g of sodium triacetoxyborohydride and stirred at the same temperature for 30 minutes. The reaction mixture was added with 0.74 g of sodium triacetoxyborohydride and stirred at the same temperature for 30 minutes, and then the reaction mixture was stirred for 1 hour under reflux by heating. Thereto were added chloroform and an aqueous saturated sodium hydrogen carbonate solution. The organic layer was separated, and the aqueous layer was extracted with chloroform. The organic layer and the extract were combined, and the resultant solution was washed with an aqueous saturated sodium chloride solution and dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure to obtain 0.81 g of a light brown oily substance, tert-butyl 4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)-4-methylpiperidine-1-carboxylate.

후처리

  1. additionwere added
  2. stirringstirred at the same temperature for 30 minutes
  3. stirringstirred at the same temperature for 30 minutes
  4. stirringthe reaction mixture was stirred for 1 hour
  5. temperatureunder reflux
  6. temperatureby heating
  7. customThe organic layer was separated
  8. extractionthe aqueous layer was extracted with chloroform
  9. washthe resultant solution was washed with an aqueous saturated sodium chloride solution
  10. dry with materialdried over anhydrous magnesium sulfate
  11. customthe solvent was removed under reduced pressure

출처 및 근거

ORD 기록
ord-c846f63164644d04a5a0217a7ae5a053
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08524738B2

연결된 노트

불러오는 중…