4,4-Dibenzyl-1,7-diphenyl-1,6-heptadiene-3,5-dione → 4,4-Dibenzyl-1,7-diphenylheptane-3,5-dione

HRID 77648노트

반응식

HRID 77648 반응식
[CH2:1]([C:8]([CH2:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)([C:19](=[O:28])[CH:20]=[CH:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)[C:9](=[O:18])[CH:10]=[CH:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>[Pd].C(OCC)(=O)C>[CH2:29]([C:8]([CH2:1][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1)([C:19](=[O:28])[CH2:20][CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)[C:9](=[O:18])[CH2:10][CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[C:30]1[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=1

참가 물질

4

반응물 1

HCID 695017744,4-Dibenzyl-1,7-diphenyl-1,6-heptadiene-3,5-dione

생성물 1

HCID 588334354,4-Dibenzyl-1,7-diphenylheptane-3,5-dione수율 86%

시약·촉매·용매 2

HCID 23938Palladium촉매HCID 8857Ethyl Acetate용매

실험 절차

4,4-Dibenzyl-1,7-diphenyl-1,6-heptadiene-3,5-dione (12b, 70 mg, 0.2 mmol) and palladium on activated carbon (0.10 g, 10%) were combined in ethyl acetate (25 ml). The mixture was placed under a hydrogen atmosphere (60 psi) on a Parr apparatus for 5 hr at room temperature. The resulting mixture was filtered through celite and the filtrate was washed with saturated sodium chloride, dried over magnesium sulfate, filtered and evaporated to afford a solid. The crude solid was chromatographed on silica gel with ethyl acetate/hexane to give a solid. The solid was recrystallized from hexane to give 60 mg (86%) of a white solid: mp 101-102° C. [expected mp 100.5-101.5° C.]; 1H NMR: δ 2.56 (t, 4H, J=7.4 Hz), 2.74 (t, 4H, J=6.8 Hz), 3.29 (s, 4H), 7.04 (m, 20H); 13C NMR: δ 29.6, 37.3, 42.5, 71.1, 126.1, 126.8, 128.4, 129.6, 136.0, 140.6, 207.8; Anal. Calcd for C33H32O2: C, 86.05; H, 7.00. Found: C, 86.28; H, 7.11.

후처리

  1. customfor 5 hr
  2. customat room temperature
  3. filtrationThe resulting mixture was filtered through celite
  4. washthe filtrate was washed with saturated sodium chloride
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. customevaporated
  8. customto afford a solid
  9. customThe crude solid was chromatographed on silica gel with ethyl acetate/hexane
  10. customto give a solid
  11. customThe solid was recrystallized from hexane

출처 및 근거

ORD 기록
ord-91c6a1f7fe5a4f1d8ec2c185f9d562b5
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08841326B2

반응 노트

불러오는 중…