반응식
[CH2:1]([CH:4]1[CH2:9][CH2:8][CH:7]([C:10]2[CH:15]=[CH:14][C:13]([OH:16])=[CH:12][CH:11]=2)[CH2:6][CH2:5]1)[CH2:2][CH3:3].[H][H]>C1(C)C=CC=CC=1.[Pd]>[CH2:1]([C@H:4]1[CH2:5][CH2:6][C@H:7]([CH:10]2[CH2:15][CH2:14][C:13](=[O:16])[CH2:12][CH2:11]2)[CH2:8][CH2:9]1)[CH2:2][CH3:3]참가 물질
5
반응 조건
- 온도
- 50 °C
실험 절차
A soluton of 500 g of 4-(4-n-propylcyclohexyl)-phenol in 5 l of toluene is hydrogenated at a hydrogen pressure of 5 bar and 120° C. in the presence of 50 g of palladium on activated carbon (5% by weight). The reaction mixture is filtered and freed from water by azeotropic distillation. It is then treated with 110 g of pyridine sulfone (pyridine-sulfur trioxide complex), stirred at 50° C. for 1 hour and filtered using basic alumina. After removal of the solvent, 433 g (86% yield) of the trans-4-(4-n-propylcyclohexyl)cyclohexanone remain as a colourless solidified melt having a purity of 99.5% (GC).
후처리
- filtrationThe reaction mixture is filtered
- distillationfreed from water by azeotropic distillation
- additionIt is then treated with 110 g of pyridine sulfone (pyridine-sulfur trioxide complex)
- filtrationfiltered
출처 및 근거
- ORD 기록
- ord-4bebb5f1d5674eec986d2bae6365ab4b
- 출처 데이터셋
- uspto-grants-2001_04
- 특허 번호
- US06215028B1
연결된 노트
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