Dimethyldioxirane → 1-Hydroxy-2,6-diphenylpiperidin-4-yl Laurate

HRID 257676

反応式

HRID 257676 の反応式
CC1(C)O[O:3]1.[C:6]([O:19][CH:20]1[CH2:25][CH:24]([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[NH:23][CH:22]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH2:21]1)(=[O:18])[CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH3:17]>CC(C)=O>[C:6]([O:19][CH:20]1[CH2:21][CH:22]([C:32]2[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=2)[N:23]([OH:3])[CH:24]([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[CH2:25]1)(=[O:18])[CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH3:17]

参加物

4

反応物 2

HCID 115197DimethyldioxiraneHCID 152504842,6-Diphenyl-4-piperidyl laurate

生成物 1

HCID 544947831-Hydroxy-2,6-diphenylpiperidin-4-yl Laurate収率 78%

試薬・触媒・溶媒 1

HCID 180Acetone溶媒2 回

反応条件

温度
0 °C

実験手順

A solution of 590 mL (27.7 mmol) of dimethyldioxirane, 0.047M in acetone (prepared by the procedure of Eaton and Wicks, J. Org. Chem. 1988, 53, 5353) is added via a cannula to a 0° C. solution of 12.1 g (27.7 mmol) of 2,6-diphenyl-4-piperidyl laurate in 200 mL of acetone. After stirring for 10 minutes at 0° C.; the reaction mixture is concentrated under reduced pressure and the residue is recrystallized from methanol to yield 9.7 g (78% yield) of the title compound as a white solid: mp 89°-90° C.

後処理

  1. concentrationthe reaction mixture is concentrated under reduced pressure
  2. customthe residue is recrystallized from methanol

出典と根拠

ORDレコード
ord-d4bc64615de0497eb9304777eeb943b4
出典データセット
uspto-grants-1993_11
特許番号
US05262538

関連ノート

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