Sodium borohydride → 2-((2,4-Dichlorobenzyl)(methyl)amino)-1-phenylethanol

HRID 45657ノート

反応式

HRID 45657 の反応式
[Cl:1][C:2]1[CH:19]=[C:18]([Cl:20])[CH:17]=[CH:16][C:3]=1[CH2:4][N:5]([CH3:15])[CH2:6][C:7]([C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)=[O:8].[BH4-].[Na+]>CO>[Cl:1][C:2]1[CH:19]=[C:18]([Cl:20])[CH:17]=[CH:16][C:3]=1[CH2:4][N:5]([CH3:15])[CH2:6][CH:7]([C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)[OH:8]

参加物

4

反応物 2

HCID 4311764Sodium borohydrideHCID 223868992-((2,4-Dichlorobenzyl)(methyl)amino)-1-phenylethanone

生成物 1

HCID 223868152-((2,4-Dichlorobenzyl)(methyl)amino)-1-phenylethanol収率 79%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

反応条件

温度
0 °C

実験手順

Into a 250 ml 3-necked roundbottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of 2-((2,4-dichlorobenzyl)(methyl)amino)-1-phenylethanone (4.3 g, 14.01 mmol, 1.00 equiv) in methanol (50 mL). This was followed by the addition of NaBH4 (1.5 g, 39.47 mmol, 2.82 equiv) in several batches at 0° C. The resulting solution was stirred for 30 min at 0° C. in a water/ice bath. The reaction was then quenched by the addition of 20 mL of acetone. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:80-1:20). This resulted in 3.4 g (79%) of the title compound as a white solid.

後処理

  1. customInto a 250 ml 3-necked roundbottom flask purged
  2. temperaturemaintained with an inert atmosphere of nitrogen
  3. customThe reaction was then quenched by the addition of 20 mL of acetone
  4. concentrationThe resulting mixture was concentrated under vacuum

出典と根拠

ORDレコード
ord-e0c6fab508634aa68debc573a7ce18fa
出典データセット
uspto-grants-2013_09
特許番号
US08541448B2

反応ノート

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