Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Toluene → 4-[4-(Trifluoromethoxy)phenoxy]-1-{4-[(2,2,4-trimethyl-1,3-dioxolan-4-yl)methoxy]phenyl}piperidine
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Toluene | HCID 1140 | — |
| 반응물 | 4-[4-(Trifluoromethoxy)phenoxy]piperidine | HCID 16115439 | — |
| 반응물 | Sodium t-butoxide | HCID 23676156 | — |
| 반응물 | 4-[(4-Bromophenoxy)methyl]-2,2,4-trimethyl-1,3-dioxolane | HCID 71059331 | — |
| 촉매 | palladium(II) acetate | HCID 167845 | — |
| 촉매 | Tri-tert-butylphosphine tetraphenylborate | HCID 86674235 | — |
| 용매 | Water | HCID 962 | — |
| 용매 | Ethyl Acetate | HCID 8857 | — |
| 생성물 | 4-[4-(Trifluoromethoxy)phenoxy]-1-{4-[(2,2,4-trimethyl-1,3-dioxolan-4-yl)methoxy]phenyl}piperidine | HCID 67361124 | 93.2% |
반응 단계
4-[(4-Bromophenoxy)methyl]-2,2,4-trimethyl-1,3-dioxolane (156 mg, 0.518 mmol), 4-[4-(trifluoromethoxy)phenoxy]piperidine (135 mg, 0.517 mmol), palladium acetate (1.2 mg, 0.0053 mmol), tri-tert-butylphosphine tetraphenylborate (2.7 mg, 0.0052 mmol), sodium tert-butoxide (55 mg, 0.57 mmol), and toluene (2 mL) were mixed and stirred under reflux for 2 hours. Ethyl acetate and water were added to the reaction mixture, followed by extraction. The organic layer was washed with water twice. A residue was obtained by concentrating the organic layer under reduced pressure, and the resulting residue was then subjected to chromatography refining (methylene chloride) using silica gel, obtaining 232 mg of the objective compound (yield: 93%).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US08598358B2 |
| 출처 데이터셋 | uspto-grants-2013_12 |
| ORD ID | ord-d3bee796665b41afb7076e2b8902854f |
| 출처 메모 | uspto-grants-2013_12 |