N-Hydroxyphthalimide → HCID 23353087, 화합물

HRID 1768541노트

반응식

HRID 1768541 반응식
[OH:1][N:2]1[C:6](=[O:7])[C:5]2=[CH:8][CH:9]=[CH:10][CH:11]=[C:4]2[C:3]1=[O:12].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.O[CH2:33][CH2:34][CH2:35][C:36]#[C:37][C:38]1[CH:43]=[CH:42][C:41]([F:44])=[CH:40][CH:39]=1.N(C(OCC)=O)=NC(OCC)=O>O1CCCC1>[F:44][C:41]1[CH:42]=[CH:43][C:38]([C:37]#[C:36][CH2:35][CH2:34][CH2:33][O:1][N:2]2[C:3](=[O:12])[C:4]3=[CH:11][CH:10]=[CH:9][CH:8]=[C:5]3[C:6]2=[O:7])=[CH:39][CH:40]=1

참가 물질

6

반응물 4

HCID 10665N-HydroxyphthalimideHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 189879965-(4-Fluorophenyl)-4-pentyn-1-ol

생성물 1

HCID 23353087HCID 23353087, 화합물수율 82%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

33.4 g (0.205 mol) of N-hydroxyphthalimide and 53.8 g (0.205 mol) of triphenylphosphine were added to a solution of 33.1 g (0.186 mol) of 5-hydroxy-1-(4-fluorophenyl)-1-pentyne in 430 ml of dry tetrahydrofuran. 35.7 g (0.205 mol) of diethyl azodicarboxylate were then added dropwise in the course of 2.5 hours with temperature control (max. 40° C.). Stirring was carried out overnight at room temperature, the mixture was evaporated down under reduced pressure and the residue was taken up with 300 ml of dichloromethane. The solution was washed twice with sodium carbonate solution and once with saturated sodium chloride solution. After drying and evaporating down, the crude product was purified by chromatography over silica gel. The eluents used were initially dichloromethane/n-hexane and subsequently pure dichloromethane. Yield: 82%; mp.: 85°-88° C. 250-MHz-1H-NMR (in DMSO-d6): δ[ppm]=1.9-2.1 (m, 2H); 2.68 (t, 2H); 4.342 (t, 2H); 7.18 (t, 2H); 7.4-7.6 (m, 2H); 7.85 (s, 4H).

후처리

  1. customthe mixture was evaporated down under reduced pressure
  2. washThe solution was washed twice with sodium carbonate solution and once with saturated sodium chloride solution
  3. customAfter drying
  4. customevaporating down
  5. customthe crude product was purified by chromatography over silica gel

출처 및 근거

ORD 기록
ord-bae56c8b8afb463e99e4ecdf278dcb62
출처 데이터셋
uspto-grants-1995_01
특허 번호
US05378677

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