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Benzyl piperazine-1-carboxylate → Phenylmethyl [4-(4-fluorophenyl)-4-methoxy-1-cyclohexyl]-1-piperazinecarboxylate

HRID 2260504
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HRID 2260504 반응식
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([O:15][CH3:16])[CH2:13][CH2:12][C:11](=O)[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.[N:17]1([C:23]([O:25][CH2:26][C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)=[O:24])[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]1.[BH4-].[Na+]>CC(C)[O-].[Ti+4].CC(C)[O-].CC(C)[O-].CC(C)[O-]>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([O:15][CH3:16])[CH2:13][CH2:12][CH:11]([CH:18]3[CH2:19][NH:20][CH2:21][CH2:22][N:17]3[C:23]([O:25][CH2:26][C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)=[O:24])[CH2:10][CH2:9]2)=[CH:4][CH:3]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 643495Benzyl piperazine-1-carboxylateHCID 4311764Sodium borohydrideHCID 184002134-(4-Fluorophenyl)-4-methoxycyclohexanone

생성물 1

HCID 86748438Phenylmethyl [4-(4-fluorophenyl)-4-methoxy-1-cyclohexyl]-1-piperazinecarboxylate수율 35.7%

시약·촉매·용매 1

HCID 11026Titanium isopropoxide촉매

실험 절차

A mixture of 4-(4-fluorophenyl)-4-methoxycyclohexanone (2,2 g, 10 mmole), phenylmethyl 1-piperazinecarboxylate (2.2 g, 10 mmole), titanium(IV) isopropoxide (3.7 ml, 11 mmole) were mixed, reacted and reduced with sodium borohydride (0.4 g, 10 mmole) as in example 5. The crude product was purified by chromatography on silica eluting with methanol-methylene chloride (1:50) to give phenylmethyl [4-(4-fluorophenyl)-4-methoxy-1-cyclohexyl]-1-piperazinecarboxylate (35.7%, mp: 68°-69° C.).

후처리

  1. additionwere mixed
  2. customreacted
  3. customThe crude product was purified by chromatography on silica eluting with methanol-methylene chloride (1:50)

출처 및 근거

ORD 기록
ord-61d3c8aca349440896fe77e84e85200b
출처 데이터셋
uspto-grants-1995_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05478828

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