2-Naphthoxyacetic acid → 1-(5,7-dihydro-4H-furo[2,3-c]pyridin-6-yl)-2-(2-naphthoxy)ethan-1-one

HRID 611185

반응식

HRID 611185 반응식
Cl.[O:2]1[C:6]2[CH2:7][NH:8][CH2:9][CH2:10][C:5]=2[CH:4]=[CH:3]1.[CH:11]1[C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH:14]=[CH:13][C:12]=1[O:21][CH2:22][C:23](O)=[O:24].C(N(CC)CC)C.C(P(=O)(OCC)OCC)#N>ClCCl.O>[O:2]1[C:6]2[CH2:7][N:8]([C:23](=[O:24])[CH2:22][O:21][C:12]3[CH:13]=[CH:14][C:15]4[C:20](=[CH:19][CH:18]=[CH:17][CH:16]=4)[CH:11]=3)[CH2:9][CH2:10][C:5]=2[CH:4]=[CH:3]1

참가 물질

7

반응물 4

HCID 84222-Naphthoxyacetic acidHCID 8471TriethylamineHCID 76257Diethyl cyanophosphonateHCID 195999074,5,6,7-Tetrahydrofuro[2,3-c]pyridine hydrochloride

생성물 1

HCID 196002291-(5,7-dihydro-4H-furo[2,3-c]pyridin-6-yl)-2-(2-naphthoxy)ethan-1-one

시약·촉매·용매 2

HCID 962Water용매HCID 6344Dichloromethane용매

실험 절차

To a solution of 0.160 g (1.000 mmol) of 4,5,6,7-tetrahydrofuro[2,3-c]pyridine hydrochloride, 0.24 g (1.2 mmol) of 2-naphthoxyacetic acid and 0.55 ml (4.0 mmol) of triethylamine in 30 ml of dichloromethane, 0.24 g (1.5 mmol) of diethyl cyanophosphonate was added dropwise under ice-cooling, followed by overnight stirring at room temperature. The reaction mixture was poured into water and extracted with dichloromethane 2 times. The combined organic layer was washed with water and dried over anhydrous sodium sulfate; the solvent was distilled off under reduced pressure. The resulting crude product was purified by silica gel column chromatography (hexane/ethyl acetate=3/1 to 1/1). The resulting product was purified by recrystallization from hexane/ethyl acetate (=1/1)-dichloromethane to yield the desired product.

후처리

  1. temperaturecooling
  2. extractionextracted with dichloromethane 2 times
  3. washThe combined organic layer was washed with water
  4. dry with materialdried over anhydrous sodium sulfate
  5. distillationthe solvent was distilled off under reduced pressure
  6. customThe resulting crude product was purified by silica gel column chromatography (hexane/ethyl acetate=3/1 to 1/1)
  7. customThe resulting product was purified by recrystallization from hexane/ethyl acetate (=1/1)-dichloromethane

출처 및 근거

ORD 기록
ord-4335a2d03b1446bcb2bd44cb7f538442
출처 데이터셋
uspto-grants-1999_12
특허 번호
US05998433

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