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Lithium hexamethyldisilazane → N,N-Bis(trimethylsilyl)-(1R)-1-[(3aS,4S,6S,7aR)-hexahydro-3a,5,5-trimethyl-4,6-methano-1,3,2-benzodioxaborol-2-yl]-3-methylbutylamine

HRID 1037733
ノート
印刷プレビュー

反応式

HRID 1037733 の反応式
[CH3:1][Si:2]([N-:5][Si:6]([CH3:9])([CH3:8])[CH3:7])([CH3:4])[CH3:3].[Li+].Cl[C@@H:12]([B:17]1[O:21][C@@H:20]2[CH2:22][C@@H:23]3[CH2:26][C@H:25]([C@:19]2([CH3:29])[O:18]1)[C:24]3([CH3:28])[CH3:27])[CH2:13][CH:14]([CH3:16])[CH3:15]>O1CCCC1>[CH3:1][Si:2]([CH3:4])([CH3:3])[N:5]([C@H:12]([B:17]1[O:21][C@@H:20]2[CH2:22][C@@H:23]3[CH2:26][C@H:25]([C@:19]2([CH3:29])[O:18]1)[C:24]3([CH3:27])[CH3:28])[CH2:13][CH:14]([CH3:16])[CH3:15])[Si:6]([CH3:9])([CH3:8])[CH3:7]
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

4

反応物 2

HCID 2733832Lithium hexamethyldisilazaneHCID 21103224(3aS,4S,6S,7aR)-2-[(1S)-1-chloro-3-methylbutyl]-3a,5,5-trimethylhexahydro-4,6-methano-1,3,2-benzodioxaborole

生成物 1

HCID 21103230N,N-Bis(trimethylsilyl)-(1R)-1-[(3aS,4S,6S,7aR)-hexahydro-3a,5,5-trimethyl-4,6-methano-1,3,2-benzodioxaborol-2-yl]-3-methylbutylamine

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

反応条件

温度
-78 °C

実験手順

A 1.0 M solution of lithium bis(trimethylsilyl)amide in tetrahydrofuran (189 ml, 0.189 mol) was added, over 30 minutes, to a solution of crude 2-[(1S)-1-chloro-3-methylbutyl]-(3aS,4S,6S,7aR)-hexahydro-3a,5,5-trimethyl-4,6-methano-1,3,2-benzodioxaborole of Step 2 (59.0 g, 91% purity, 0.189 mol) in tetrahydrofuran (580 ml) while cooling at −78° C. The reaction mixture was allowed to slowly warm to room temperature overnight. The solvent was removed by rotary evaporation and the residue taken up with dry hexane (800 ml). The resulting suspension was stirred at room temperature for 2 hours, then the solid was removed by filtration on a celite cake, which was washed with dry hexane (3×100 ml). The filtrate was concentrated giving a satisfactorily pure product as a brown oil (79 g) in practically quantitative yield. The product was used for the subsequent step without further purification.

後処理

  1. temperatureto slowly warm to room temperature overnight
  2. customThe solvent was removed by rotary evaporation
  3. customthe solid was removed by filtration on a celite cake, which
  4. washwas washed with dry hexane (3×100 ml)
  5. concentrationThe filtrate was concentrated

出典と根拠

ORDレコード
ord-72411ae1ac9847f1bea0d42d61a894ed
出典データセット
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08546608B2

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