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Sodium Bicarbonate → tert-Butyl 4-(1-hydroxyeth-1-yl)-4-(2-(tert-butyldimethylsilyloxy)eth-1-yl)piperidine-1-carboxylate

HRID 8769
ノート
印刷プレビュー

反応式

HRID 8769 の反応式
[CH:1]([C:3]1([CH2:16][CH2:17][O:18][Si:19]([C:22]([CH3:25])([CH3:24])[CH3:23])([CH3:21])[CH3:20])[CH2:8][CH2:7][N:6]([C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[CH2:5][CH2:4]1)=[O:2].C[Li].[C:28](=O)(O)[O-].[Na+]>C1COCC1.CCOCC>[OH:2][CH:1]([C:3]1([CH2:16][CH2:17][O:18][Si:19]([C:22]([CH3:25])([CH3:24])[CH3:23])([CH3:20])[CH3:21])[CH2:4][CH2:5][N:6]([C:9]([O:11][C:12]([CH3:14])([CH3:15])[CH3:13])=[O:10])[CH2:7][CH2:8]1)[CH3:28]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 516892Sodium BicarbonateHCID 21983955tert-Butyl 4-formyl-4-(2-(tert-butyldimethylsilyloxy)eth-1-yl)piperidine-1-carboxylateHCID 178418348HCID 178418348、化合物2 回

生成物 1

HCID 21983937tert-Butyl 4-(1-hydroxyeth-1-yl)-4-(2-(tert-butyldimethylsilyloxy)eth-1-yl)piperidine-1-carboxylate

試薬・触媒・溶媒 2

HCID 3283Diethyl Ether
溶媒
2 回
HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of tert-butyl 4-formyl-4-(2-(tert-butyldimethylsilyloxy)eth-1-yl)piperidine-1-carboxylate (6.3 g, 17 mmol) in THF (170 mL) at −70° C. was added 1.4M methyl lithium in ether (13.3 mL, 19 mmol). After 2 h, an additional amount of 1.4M methyl lithium in ether (2.5 mL) was added. After an additional 30 min, the reaction was poured into aq. sodium bicarbonate and extracted three times with ether. The combined organic layers were washed with brine, dried over sodium sulfate, filtered, and concentrated to afford the title product (6.6 g) which was used directly in the next step.

後処理

  1. waitAfter an additional 30 min
  2. extractionextracted three times with ether
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-f72326cb43594b419689d372b0652184
出典データセット
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07091211B2

反応ノート

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