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1,1'-Carbonyldiimidazole → tert-butyl 3-(3-(methoxy(methyl)amino)-3-oxopropyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

HRID 579533
ノート
印刷プレビュー

反応式

HRID 579533 の反応式
[C:1]([O:5][C:6]([N:8]1[CH:17]([CH2:18][CH2:19][C:20](O)=[O:21])[CH2:16][C:15]2[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C1N=CN(C(N2C=NC=C2)=O)C=1.Cl.[CH3:36][NH:37][O:38][CH3:39]>ClCCl>[CH3:39][O:38][N:37]([CH3:36])[C:20](=[O:21])[CH2:19][CH2:18][CH:17]1[CH2:16][C:15]2[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=2)[CH2:9][N:8]1[C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:7]
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 682631,1'-CarbonyldiimidazoleHCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 668329413-{2-[(Tert-butoxy)carbonyl]-1,2,3,4-tetrahydroisoquinolin-3-yl}propanoic acid

生成物 1

HCID 86663726tert-butyl 3-(3-(methoxy(methyl)amino)-3-oxopropyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate収率 98%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒

実験手順

A solution of 3-(2-(tert-butoxycarbonyl)-1,2,3,4-tetrahydroisoquinolin-3-yl)propanoic acid (7.7 g, 25.2 mmol) in dichloromethane (200 mL, 0.13 M) was treated with CDI (6.1 g, 37.8 mmol) in three portions over 10 min with vigorous stirring. After the addition was complete, the mixture was stirred for an additional 40 min and treated with N,O-dimethylhydroxylamine hydrochloride (3.7 g, 37.2 mmol) and stirred overnight. The resulting solution was washed successively with water, 1 M HCl, 1 M NaOH, sat'd aq sodium chloride, dried over anhydrous MgSO4, filtered and concentrated to give tert-butyl 3-(3-(methoxy(methyl)amino)-3-oxopropyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate as a yellow oil (8.6 g, 98%). LCMS, C19H28N2O4 m/z [371.4 (M+23)]. The crude product was used without further purification.

後処理

  1. additionAfter the addition
  2. stirringstirred overnight
  3. washThe resulting solution was washed successively with water, 1 M HCl, 1 M NaOH
  4. dry with materialdried over anhydrous MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-4a219e94f7e347e98364f7ef9ca201b7
出典データセット
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09040703B2

反応ノート

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