Water → Ergosterol, acetate

HRID 481284ノート

反応式

HRID 481284 の反応式
[CH3:1][C@@H:2]([C@@H:10]1[C@@:14]2([CH3:29])[CH2:15][CH2:16][C@@H:17]3[C@@:22]4([CH3:28])[CH2:23][CH2:24][C@H:25]([OH:27])[CH2:26][C:21]4=[CH:20][CH:19]=[C:18]3[C@@H:13]2[CH2:12][CH2:11]1)/[CH:3]=[CH:4]/[C@@H:5]([CH:7]([CH3:9])[CH3:8])[CH3:6].[C:30](OC(=O)C)(=[O:32])[CH3:31].O>N1C=CC=CC=1>[C:30]([O:27][C@H:25]1[CH2:24][CH2:23][C@@:22]2([CH3:28])[C:21](=[CH:20][CH:19]=[C:18]3[C@@H:17]2[CH2:16][CH2:15][C@@:14]2([CH3:29])[C@H:13]3[CH2:12][CH2:11][C@@H:10]2[C@H:2]([CH3:1])/[CH:3]=[CH:4]/[C@H:5]([CH3:6])[CH:7]([CH3:8])[CH3:9])[CH2:26]1)(=[O:32])[CH3:31]

参加物

5

反応物 3

HCID 962WaterHCID 7918Acetic AnhydrideHCID 444679Ergosterol

生成物 1

HCID 6436903Ergosterol, acetate収率 74%

試薬・触媒・溶媒 1

HCID 1049Pyridine溶媒

実験手順

To a solution of 50 gm (0.13 mol) of ergosterol (1) in 300 ml of anhydrous pyridine was added 33.3 ml (0.35 mol) of acetic anhydride. The mixture was stirred at room temperature overnight and then 600 ml of water was added. The precipitate was filtered and washed three times with 200 ml portions of acetonitrile and then air dried to yield 42.0 g (74%) of (2).

後処理

  1. filtrationThe precipitate was filtered
  2. washwashed three times with 200 ml portions of acetonitrile
  3. customair dried

出典と根拠

ORDレコード
ord-7b12651393e34070bd6f7c7d711280e9
出典データセット
uspto-grants-1998_08
特許番号
US05789397

反応ノート

読み込み中…