Water → 3alpha-Aminocholest-5-ene

HRID 64252

反応式

HRID 64252 の反応式
[N:1]([C@@H:4]1[CH2:28][CH2:27][C@@:26]2([CH3:29])[C:6](=[CH:7][CH2:8][C@@H:9]3[C@@H:25]2[CH2:24][CH2:23][C@@:22]2([CH3:30])[C@H:10]3[CH2:11][CH2:12][C@@H:13]2[C@H:14]([CH3:21])[CH2:15][CH2:16][CH2:17][CH:18]([CH3:20])[CH3:19])[CH2:5]1)=[N+]=[N-].[H-].[Al+3].[Li+].[H-].[H-].[H-].O.[OH-].[Na+]>C(OCC)C>[NH2:1][C@@H:4]1[CH2:28][CH2:27][C@@:26]2([CH3:29])[C:6](=[CH:7][CH2:8][C@@H:9]3[C@@H:25]2[CH2:24][CH2:23][C@@:22]2([CH3:30])[C@H:10]3[CH2:11][CH2:12][C@@H:13]2[C@H:14]([CH3:21])[CH2:15][CH2:16][CH2:17][CH:18]([CH3:20])[CH3:19])[CH2:5]1

参加物

6

反応物 4

HCID 962Water2 回HCID 14798Sodium HydroxideHCID 133796253alpha-Azidocholest-5-eneHCID 21226445Aluminium lithium hydride

生成物 1

HCID 133964113alpha-Aminocholest-5-ene収率 93%

試薬・触媒・溶媒 1

HCID 3283Diethyl Ether溶媒

反応条件

温度
0 °C

実験手順

3α-Azidocholest-5-ene (4.62 mmol, 1.9 g) was dissolved in 154 mL of anhydrous diethyl ether. Lithium aluminum hydride (46.2 mmol, 1.75 g) was then added in one portion. After 30 hours, the reaction mixture was cooled to 0° C. 1.75 mL of deionized water was then added dropwise. After stirring for five minutes, 1.75 mL of 15% aqueous NaOH was added dropwise. After stirring for another five minutes, 5.25 mL of deionized water was added dropwise. The reaction was then stirred until all the salts turned white. Immediately afterwards, the reaction was filtered, dried (Na2SO4), and concentrated to afford 3α-Aminocholest-5-ene (1.57 g, 93%) as a white solid. mp 104-106° C.; IR (thin film) 3367, 3343, 2931, 1557 cm−1; 1H NMR (300 MHz, CDCl3) d 5.37-5.34 (m, 1H), 3.15 (t, 1H, J=3.2 Hz), 2.61-2.54 (m, 1H), 2.04-1.74 (m, 6H), 1.63-1.03 (m, 21H), 1.00 (s, 3H), 0.91 (d, 3H, J=6.5 Hz), 0.86 (d, 6H, J=6.6 Hz), 0.67 (s, 3H).

後処理

  1. stirringAfter stirring for another five minutes
  2. stirringThe reaction was then stirred until all the salts
  3. filtrationImmediately afterwards, the reaction was filtered
  4. dry with materialdried (Na2SO4)
  5. concentrationconcentrated

出典と根拠

ORDレコード
ord-a6342ea9989042ea9f7a10c29324fad0
出典データセット
uspto-grants-2016_09
特許番号
US09447139B2

関連ノート

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