Triethylamine → Pyrrolidine-1,2-dicarboxylic acid 2-[2-(6-bromo-naphthalen-2-yl)-2-oxo-ethyl]ester 1-tert-butyl ester

HRID 71832

反応式

HRID 71832 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][CH:9]1[C:13]([OH:15])=[O:14])=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.Br[CH2:24][C:25]([C:27]1[CH:36]=[CH:35][C:34]2[C:29](=[CH:30][CH:31]=[C:32]([Br:37])[CH:33]=2)[CH:28]=1)=[O:26]>C(#N)C>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][CH:9]1[C:13]([O:15][CH2:24][C:25]([C:27]1[CH:36]=[CH:35][C:34]2[C:29](=[CH:30][CH:31]=[C:32]([Br:37])[CH:33]=2)[CH:28]=1)=[O:26])=[O:14])=[O:7])([CH3:4])([CH3:2])[CH3:3]

参加物

5

実験手順

Pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester (24.0 g) was dissolved in acetonitrile (330 mL), and triethylamine (15.6 mL) was added. A solution of 2-bromo-1-(6-bromonaphthalen-2-yl)-ethanone (33.0 g) in acetonitrile (170 mL) were added. Reaction mixture was stirred over 3 days and evaporated under vacuum. Oil was dissolved in dichloromethane (100 mL), extracted with water (50 mL) and with NaHCO3 solution (50 mL), and evaporated under vacuum to a concentrated liquid. Solution was purified by chromatography (0-30% ethyl acetate:hexane) and evaporated under vacuum, giving pyrrolidine-1,2-dicarboxylic acid 2-[2-(6-bromo-naphthalen-2-yl)-2-oxo-ethyl]ester 1-tert-butyl ester (39.2 g, 84%) as a tan solid.

後処理

  1. customReaction mixture
  2. customevaporated under vacuum
  3. dissolutionOil was dissolved in dichloromethane (100 mL)
  4. extractionextracted with water (50 mL) and with NaHCO3 solution (50 mL)
  5. customevaporated under vacuum to a concentrated liquid
  6. customSolution was purified by chromatography (0-30% ethyl acetate:hexane)
  7. customevaporated under vacuum

出典と根拠

ORDレコード
ord-d3afa0d21e7e4d4ea1b935e19af96b2a
出典データセット
uspto-grants-2014_09
特許番号
US08822430B2

関連ノート

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