Acetonitrile → Carbonic acid 2,5-dioxo-pyrrolidin-1-yl ester 2-(2-hexadecyl-2,5,7,8-tetramethyl-chroman-6-yloxy)-ethyl Ester

HRID 20897

反応式

HRID 20897 の反応式
[CH2:1]([C:17]1([CH3:34])[CH2:26][CH2:25][C:24]2[C:19](=[C:20]([CH3:33])[C:21]([CH3:32])=[C:22]([O:28][CH2:29][CH2:30][OH:31])[C:23]=2[CH3:27])[O:18]1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16].[C:35](=O)([O:44]N1C(=O)CCC1=O)[O:36][N:37]1[C:41](=[O:42])[CH2:40][CH2:39][C:38]1=[O:43].C(N(CC)CC)C.C(#N)C>ClCCl>[CH2:1]([C:17]1([CH3:34])[CH2:26][CH2:25][C:24]2[C:19](=[C:20]([CH3:33])[C:21]([CH3:32])=[C:22]([O:28][CH2:29][CH2:30][O:31][C:35](=[O:44])[O:36][N:37]3[C:41](=[O:42])[CH2:40][CH2:39][C:38]3=[O:43])[C:23]=2[CH3:27])[O:18]1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16]

参加物

6

反応物 4

HCID 6342AcetonitrileHCID 8471TriethylamineHCID 676246Di(succinimido) carbonateHCID 593472622-(2-Hexadecyl-2,5,7,8-tetramethyl-chroman-6-yloxy)-ethanol

生成物 1

HCID 59347260Carbonic acid 2,5-dioxo-pyrrolidin-1-yl ester 2-(2-hexadecyl-2,5,7,8-tetramethyl-chroman-6-yloxy)-ethyl Ester収率 77%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

Compound 17 (10.5 g, 22 mmol) was dissolved in anhydrous dichloromethane (150 mL). To the solution were added disuccinimidyl carbonate (8.45 g, 33 mmol), triethylamine (20 mL) and acetonitrile (50 mL). The reaction mixture was stirred at room temperature under argon for over night and then evaporated dryness. The residue was dissolved in dichloromethane (300 mL). It was washed with saturated NaHCO3 aqueous solution (3×100 mL). The organic layer was dried over Na2SO4, filtered and evaporated to dryness. Compound 18 (10.4 g, 77%) was obtained as colorless powder after drying in high vacuum, which was directly used for the next step without further purification.

後処理

  1. customevaporated dryness
  2. dissolutionThe residue was dissolved in dichloromethane (300 mL)
  3. washIt was washed with saturated NaHCO3 aqueous solution (3×100 mL)
  4. dry with materialThe organic layer was dried over Na2SO4
  5. filtrationfiltered
  6. customevaporated to dryness

出典と根拠

ORDレコード
ord-d8e7cc59633842469a6293c295a59251
出典データセット
uspto-grants-2010_06
特許番号
US07745608B2

関連ノート

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