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Diisopropylethylamine → (1S)-(+)-N-[2-[[(2,3-Dihydro-1,4-benzodioxin-2-yl)methyl]amino]ethyl]-7,7-dimethyl-2-oxobicyclo[2,2,1]heptane-1-methanesulfonamide

HRID 893731
ノート
印刷プレビュー

反応式

HRID 893731 の反応式
[NH2:1][CH2:2][CH2:3][NH:4][CH2:5][CH:6]1[O:11][C:10]2[CH:12]=[CH:13][CH:14]=[CH:15][C:9]=2[O:8][CH2:7]1.C(N(C(C)C)CC)(C)C.[CH3:25][C:26]1([CH3:39])[C:30]2([CH2:34][S:35](Cl)(=[O:37])=[O:36])[C:31]([CH2:33][CH:27]1[CH2:28][CH2:29]2)=[O:32]>ClCCl>[O:11]1[C:10]2[CH:12]=[CH:13][CH:14]=[CH:15][C:9]=2[O:8][CH2:7][CH:6]1[CH2:5][NH:4][CH2:3][CH2:2][NH:1][S:35]([CH2:34][C@:30]12[C:26]([CH3:25])([CH3:39])[CH:27]([CH2:28][CH2:29]1)[CH2:33][C:31]2=[O:32])(=[O:37])=[O:36]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 81531DiisopropylethylamineHCID 26579910-Camphorsulfonyl chlorideHCID 146529492-[N-(2-aminoethyl)]aminomethyl-2,3-dihydrobenzodioxin

生成物 1

HCID 22844792(1S)-(+)-N-[2-[[(2,3-Dihydro-1,4-benzodioxin-2-yl)methyl]amino]ethyl]-7,7-dimethyl-2-oxobicyclo[2,2,1]heptane-1-methanesulfonamide収率 28.4%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒

実験手順

To a solution of 2.1 g (10 mmole) of 2-{N-(2-aminoethyl)]aminomethyl-2,3-dihydrobenzodioxin and 1.3 g (10 mmole) of diisopropylethylamine in 100 ml of dichloromethane stored in an ice bath was added 2.5 g (10 mmole) (+)-10-camphorsulfonyl chloride. The mixture was allowed to stir overnight at room temperature. The reaction was next washed with saturated aqueous sodium bicarbonate, with saturated sodium chloride, dried over sodium sulfate, filtered and evaporated in vacuum. Column chromatography on 75 g of silica gel with chloroform as eluant, followed by crystallization from 100 ml of isopropanol with the addition of 5 ml of 4 N HCl/isopropyl alcohol and 300 ml of diethyl ether gave 1.2 g of the title compound as a monohydrochloride, m.p. 143°-146° C.

後処理

  1. washThe reaction was next washed with saturated aqueous sodium bicarbonate, with saturated sodium chloride
  2. dry with materialdried over sodium sulfate
  3. filtrationfiltered
  4. customevaporated in vacuum
  5. customColumn chromatography on 75 g of silica gel with chloroform as eluant, followed by crystallization from 100 ml of isopropanol with the addition of 5 ml of 4 N HCl/isopropyl alcohol and 300 ml of diethyl ether

出典と根拠

ORDレコード
ord-67e0ceb3f16944d695f22c701742219b
出典データセット
uspto-grants-1992_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05126367

反応ノート

読み込み中…

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