Aminoacetaldehyde dimethyl acetal → 7,10-Di-tert-butyl-imidazo[1,2-f]phenanthridine

HRID 338196노트

반응식

HRID 338196 반응식
[C:1]([C:5]1[CH:18]=[CH:17][C:16]2[C:7](=[C:8]3[C:13](=[C:14](Cl)[N:15]=2)[CH:12]=[CH:11][C:10]([C:20]([CH3:23])([CH3:22])[CH3:21])=[CH:9]3)[CH:6]=1)([CH3:4])([CH3:3])[CH3:2].CO[CH:26](OC)[CH2:27][NH2:28]>COCCOCCOC>[C:1]([C:5]1[CH:18]=[CH:17][C:16]2[N:15]3[CH:26]=[CH:27][N:28]=[C:14]3[C:13]3[CH:12]=[CH:11][C:10]([C:20]([CH3:23])([CH3:22])[CH3:21])=[CH:9][C:8]=3[C:7]=2[CH:6]=1)([CH3:4])([CH3:3])[CH3:2]

참가 물질

4

반응물 2

HCID 89728Aminoacetaldehyde dimethyl acetalHCID 574376592,9-Di-tert-butyl-6-chlorophenanthridine

생성물 1

HCID 581623657,10-Di-tert-butyl-imidazo[1,2-f]phenanthridine수율 56%

시약·촉매·용매 1

HCID 8150Diglyme용매

실험 절차

2,9-Di-t-butyl-6-chlorophenanthridine (3.7 grams, 11.0 mmole) was added to a reaction flask containing aminoacetaldehyde dimethylacetal (2.4 grams, 23 mmole) dissolved into 200 mL of diglyme, heated to reflux and stirred under a nitrogen atmosphere. After 96 hours the reaction was complete as determined by TLC. The reaction mixture was cooled to room temperature and the excess solvent removed by distillation. The residue was taken up into methylene chloride. The solvent was dried over magnesium sulfate filtered and concentrated. The crude product was purified by silica gel chromatography using 10% ethyl acetate and 90% methylene chloride as the eluents. The purified product was collected, washed with hexanes, and dried to give 7,10-di-tert-butyl-imidazo[1,2-f]phenanthridine (2.0 grams, 56% yield) as a white solid.

후처리

  1. temperatureheated
  2. temperatureto reflux
  3. customthe excess solvent removed by distillation
  4. dry with materialThe solvent was dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude product was purified by silica gel chromatography
  8. customThe purified product was collected
  9. washwashed with hexanes
  10. customdried

출처 및 근거

ORD 기록
ord-c50df141d7d44ad9977fb478946f05ba
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08889864B2

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