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

Imidazole → (R)-Toluene-4-sulfonic acid 2-(tert-butyl-dimethyl-silanyloxy)-2-(6-chloro-pyridin-3-yl)-ethyl ester

HRID 495715
ノート
印刷プレビュー

反応式

HRID 495715 の反応式
[Cl:1][C:2]1[N:7]=[CH:6][C:5]([C@@H:8]([OH:21])[CH2:9][O:10][S:11]([C:14]2[CH:19]=[CH:18][C:17]([CH3:20])=[CH:16][CH:15]=2)(=[O:13])=[O:12])=[CH:4][CH:3]=1.N1C=CN=C1.[Si:27](Cl)([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:29])[CH3:28].C(OCC)(=O)C>CN(C)C=O>[C:30]([Si:27]([CH3:29])([CH3:28])[O:21][C@H:8]([C:5]1[CH:6]=[N:7][C:2]([Cl:1])=[CH:3][CH:4]=1)[CH2:9][O:10][S:11]([C:14]1[CH:15]=[CH:16][C:17]([CH3:20])=[CH:18][CH:19]=1)(=[O:13])=[O:12])([CH3:33])([CH3:32])[CH3:31]
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

6

反応物 4

HCID 795ImidazoleHCID 8857Ethyl AcetateHCID 28928tert-Butyldimethylsilyl chlorideHCID 11738935(R)-Toluene-4-sulfonic acid 2-(6-chloro-pyridin-3-yl)-2-hydroxy-ethyl ester

生成物 1

HCID 12972452(R)-Toluene-4-sulfonic acid 2-(tert-butyl-dimethyl-silanyloxy)-2-(6-chloro-pyridin-3-yl)-ethyl ester収率 84.7%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
50 °C

実験手順

To a cooled (50° C.), stirred solution of (R)-toluene-4-sulfonic acid 2-(6-chloro-pyridin-3-yl)-2-hydroxy-ethyl ester (4.9 g) and imidazole (2.0 g) in anhydrous dimethyformamide (14 mL) was added t-butyldimethylsilyl chloride (2.8 g). The reaction mixture was allowed to warm to room temperature and stirring was continued for 18 h. Ethyl acetate was added, followed by washing with water (2×), drying over sodium sulfate and concentration in vacuo to afford an oil. Chromatography (Flash 40M®) utilizing 10% ethyl acetate/hexanes afforded 5.6 g of the title compound (I-2e) as a colorless oil.

後処理

  1. temperatureto warm to room temperature
  2. washby washing with water (2×)
  3. dry with materialdrying over sodium sulfate and concentration in vacuo
  4. customto afford an oil

出典と根拠

ORDレコード
ord-46e54779df7f45b28353f87dace4c1ad
出典データセット
uspto-grants-2005_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06939867B2

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