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4-Bromobenzaldehyde → Phenylmethyl (2S)-4-[(4-bromophenyl)methyl]-2-methyl-1-piperazine Carboxylate

HRID 43340
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HRID 43340 반응식
[Br:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=O)=[CH:4][CH:3]=1.[CH3:10][C@H:11]1[CH2:16][NH:15][CH2:14][CH2:13][N:12]1[C:17]([O:19][CH2:20][C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)=[O:18].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C([O-])(O)=O.[Na+]>ClCCCl>[Br:1][C:2]1[CH:9]=[CH:8][C:5]([CH2:6][N:15]2[CH2:14][CH2:13][N:12]([C:17]([O:19][CH2:20][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)=[O:18])[C@@H:11]([CH3:10])[CH2:16]2)=[CH:4][CH:3]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 707414-BromobenzaldehydeHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 40425199Benzyl (2S)-2-methylpiperazine-1-carboxylate

생성물 1

HCID 25224210Phenylmethyl (2S)-4-[(4-bromophenyl)methyl]-2-methyl-1-piperazine Carboxylate수율 84.2%

시약·촉매·용매 1

HCID 11
1,2-Dichloroethane
용매

실험 절차

A mixture of 4-bromobenzaldehyde (1.19 g, 6.42 mmol), phenylmethyl (2S)-2-methyl-1-piperazinecarboxylate (1.505 g, 6.42 mmol) and sodium triacetoxyborohydride (2.04 g, 9.63 mmol) in 1,2-DCE (15 ml) was stirred at room temperature overnight. Saturated aq. NaHCO3 solution was added and the mixture stirred for 30 mins. Product was extracted and the extracts dried (Na2SO4). Chromatography (0-30% EtOAc in pentane) gave the title compound (2.18 g). MS (ES): MH+ 403/405.

후처리

  1. stirringthe mixture stirred for 30 mins
  2. extractionProduct was extracted
  3. dry with materialthe extracts dried (Na2SO4)

출처 및 근거

ORD 기록
ord-d3f1cc6cc426466f9662703f3e0ae627
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08536182B2

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