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Sodium borohydride → 1-(3-(6-tert-butyl-1-oxophthalazin-2(1H)-yl)-2-(hydroxymethyl)phenyl)-3-(tritylamino)-1H-pyrazole-4-carbonitrile

HRID 1025650
ノート
印刷プレビュー

反応式

HRID 1025650 の反応式
[C:1]([C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[C:11](=[O:15])[N:10]([C:16]1[C:17]([CH:49]=[O:50])=[C:18]([N:22]3[CH:26]=[C:25]([C:27]#[N:28])[C:24]([NH:29][C:30]([C:43]4[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=4)([C:37]4[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=4)[C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=4)=[N:23]3)[CH:19]=[CH:20][CH:21]=1)[N:9]=[CH:8]2)([CH3:4])([CH3:3])[CH3:2].[BH4-].[Na+]>C(Cl)Cl.CO>[C:1]([C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[C:11](=[O:15])[N:10]([C:16]1[C:17]([CH2:49][OH:50])=[C:18]([N:22]3[CH:26]=[C:25]([C:27]#[N:28])[C:24]([NH:29][C:30]([C:31]4[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=4)([C:37]4[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=4)[C:43]4[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=4)=[N:23]3)[CH:19]=[CH:20][CH:21]=1)[N:9]=[CH:8]2)([CH3:4])([CH3:2])[CH3:3]
参加物反応条件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 866737261-[3-(6-tert-Butyl-1-oxo-1H-phthalazin-2-yl)-2-formyl-phenyl]-3-(trityl-amino)-1H-pyrazole-4-carbonitril

生成物 1

HCID 710084231-(3-(6-tert-butyl-1-oxophthalazin-2(1H)-yl)-2-(hydroxymethyl)phenyl)-3-(tritylamino)-1H-pyrazole-4-carbonitrile収率 76.1%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒
HCID 6344
Dichloromethane
溶媒

反応条件

温度
0 °C

実験手順

To a solution of 1-[3-(6-tert-Butyl-1-oxo-1H-phthalazin-2-yl)-2-formyl-phenyl]-3-(trityl-amino)-1H-pyrazole-4-carbonitril (632 mg, 0.965 mmol) in methylene chloride (20 mL) and methanol (10 mL), at 0° C. was added sodium borohydride (37 mg, 0.965 mmol). The resulting turbid reaction mixture was stirred at 0° C. for 5 minutes and then allowed to stir at room temperature for 10 minutes. The reaction was then judged to be complete by TLC. The volatiles removed in vacuo and the crude product was bound to silica gel and purified over a 40 g silica gel cartridge eluting the column with a 20-50% EtOAc/hexanes gradient to give 1-[3-(6-tert-Butyl-1-oxo-1H-phthalazin-2-yl)-2-hydroxymethyl-phenyl]-3-(trityl-amino)-1H-pyrazole-4-carbonitrile (482 mg, 76%).

後処理

  1. customThe resulting turbid reaction mixture
  2. stirringto stir at room temperature for 10 minutes
  3. customThe volatiles removed in vacuo
  4. custompurified over a 40 g silica gel cartridge
  5. washeluting the column with a 20-50% EtOAc/hexanes gradient

出典と根拠

ORDレコード
ord-d3a42d0dae894ee49b35f3e67e9d390e
出典データセット
uspto-grants-2014_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08729078B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート