ホームMCPワークベンチSkills
ホームワークベンチ通知マイページ
llms.txt · MCPガイドプライバシーポリシー · 利用規約 · サポートv1.8.0
  1. ホーム
  2. /反応

3-Cyanophenylboronic acid → tert-butyl 4-(3-cyanophenyl)-3,6-dihydropyridine-1(2H)-carboxylate

HRID 551269
ノート
印刷プレビュー

反応式

HRID 551269 の反応式
[C:1]([C:3]1[CH:4]=[C:5](B(O)O)[CH:6]=[CH:7][CH:8]=1)#[N:2].[C:12]([O:16][C:17]([N:19]1[CH2:24][CH:23]=[C:22](OS(C(F)(F)F)(=O)=O)[CH2:21][CH2:20]1)=[O:18])([CH3:15])([CH3:14])[CH3:13]>C(#N)C.C(=O)([O-])[O-].[Na+].[Na+]>[C:12]([O:16][C:17]([N:19]1[CH2:20][CH:21]=[C:22]([C:5]2[CH:6]=[CH:7][CH:8]=[C:3]([C:1]#[N:2])[CH:4]=2)[CH2:23][CH2:24]1)=[O:18])([CH3:15])([CH3:13])[CH3:14]
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 27343253-Cyanophenylboronic acidHCID 10991161Tert-butyl 4-(trifluoromethanesulfonyloxy)-1,2,3,6-tetrahydropyridine-1-carboxylate

生成物 1

HCID 51356836tert-butyl 4-(3-cyanophenyl)-3,6-dihydropyridine-1(2H)-carboxylate収率 77.9%

試薬・触媒・溶媒 2

HCID 6342Acetonitrile溶媒HCID 10340Sodium Carbonate溶媒

実験手順

3-Cyanophenyl boronic acid (1.8 g, 12.2 mmol) and 4-(trifluoromethanesulfonyloxy)-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester (5.0 g, 15.2 mmol;) are dissolved in acetonitrile (60 ml) and 0.4 M aqueous sodium carbonate (60 ml). The solution is degassed and treated with palladium tetrakistriphenyl phosphine (0.81 g, 0.7 mmol) at 90° C. for 1 hour. The reaction is cooled, filtered warmed and the filtrate is concentrated to an oil. The oil is extracted with methylene chloride (3×) and the solvent is removed under vacuum. The residue is chromatographed (15% ethyl acetate/hexane) to give the title compound as a white solid (2.7 g, 9.5 mmol). 1H NMR (CDCl3, 300 MHz) δ 7.63 (s, 1H), 7.55 (m, 2H), 7.44 (t, 1H), 6.10 (br, 1H), 4.09 (m, 2H), 3.63 (t, 2H), 2.50 (br, 2H). EI MS M++1: 285.

後処理

  1. customThe solution is degassed
  2. temperatureThe reaction is cooled
  3. filtrationfiltered
  4. temperaturewarmed
  5. concentrationthe filtrate is concentrated to an oil
  6. extractionThe oil is extracted with methylene chloride (3×)
  7. customthe solvent is removed under vacuum
  8. customThe residue is chromatographed (15% ethyl acetate/hexane)

出典と根拠

ORDレコード
ord-a09f6e6a5fff4728ad70661fa982162d
出典データセット
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07947684B2

反応ノート

読み込み中…

このページの内容参加物実験手順後処理出典と根拠反応ノート