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Sodium borohydride → Tert-butyl 3-(3-amino-4-bromobenzyloxy)-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate

HRID 1712379
ノート
印刷プレビュー

反応式

HRID 1712379 の反応式
[Br:1][C:2]1[CH:42]=[CH:41][C:5]([CH2:6][O:7][CH:8]2[CH:13]([C:14]3[CH:19]=[CH:18][C:17]([O:20][CH2:21][CH2:22][CH2:23][O:24][CH2:25][C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=4[O:32][CH3:33])=[CH:16][CH:15]=3)[CH2:12][CH2:11][N:10]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:9]2)=[CH:4][C:3]=1[N+:43]([O-])=O.[BH4-].[Na+]>C1C=CC=CC=1.O.O.O.O.O.O.[Ni](Cl)Cl>[NH2:43][C:3]1[CH:4]=[C:5]([CH:41]=[CH:42][C:2]=1[Br:1])[CH2:6][O:7][CH:8]1[CH:13]([C:14]2[CH:19]=[CH:18][C:17]([O:20][CH2:21][CH2:22][CH2:23][O:24][CH2:25][C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=3[O:32][CH3:33])=[CH:16][CH:15]=2)[CH2:12][CH2:11][N:10]([C:34]([O:36][C:37]([CH3:40])([CH3:38])[CH3:39])=[O:35])[CH2:9]1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 2

HCID 4311764Sodium borohydrideHCID 68502678Tert-butyl 3-(4-bromo-3-nitrobenzyloxy)-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate

生成物 1

HCID 68504899Tert-butyl 3-(3-amino-4-bromobenzyloxy)-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate

試薬・触媒・溶媒 2

HCID 11791229Dichloronickel;hexahydrate触媒
HCID 241
Benzene
溶媒
2 回

実験手順

The solution of 10.8 g of tert-butyl 3-(4-bromo-3-nitrobenzyloxy)-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate in 250 ml of benzene is admixed with stirring at 10° C. with the solution of 4.08 g of nickel chloride hexahydrate in 150 ml of benzene. At approx. 5° C., the mixture is admixed with 2.0 g of sodium borohydride in small portions over 1 hour. The reaction mixture is stirred for a further 1 hour, poured onto water (500 ml) and extracted with tert-butyl methyl ether (2×500 ml). The organic phases are washed successively with water (500 ml) and brine (500 ml), dried over sodium sulphate, filtered and concentrated by evaporation. The title compound is obtained as a yellowish oil from the residue by means of flash chromatography (SiO2 60F). Rt=6.03.

後処理

  1. additionpoured onto water (500 ml)
  2. extractionextracted with tert-butyl methyl ether (2×500 ml)
  3. washThe organic phases are washed successively with water (500 ml) and brine (500 ml)
  4. dry with materialdried over sodium sulphate
  5. filtrationfiltered
  6. concentrationconcentrated by evaporation

出典と根拠

ORDレコード
ord-fc241e50f7cd43f8b8aa31e1e8b083ee
出典データセット
uspto-grants-2010_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07790715B2

反応ノート

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