Hydrochloric Acid → HCID 9949326、化合物

HRID 849027ノート

反応式

HRID 849027 の反応式
C([O:8][C:9]([CH:11]([CH2:25][CH2:26][C:27]([O:29]CC1C=CC=CC=1)=[O:28])[CH2:12][P:13]([CH2:16][CH2:17][CH2:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)(=[O:15])[OH:14])=[O:10])C1C=CC=CC=1.[H-].[Na+].C=C(CCC(OCC1C=CC=CC=1)=O)C(OCC1C=CC=CC=1)=O.Cl>C1COCC1.CCOC(C)=O>[C:19]1([CH2:18][CH2:17][CH2:16][P:13]([CH2:12][CH:11]([CH2:25][CH2:26][C:27]([OH:29])=[O:28])[C:9]([OH:10])=[O:8])([OH:15])=[O:14])[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

参加物

7

反応物 4

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 10947302Dibenzyl 2-methylenepentanedioateHCID 184031632,4-Di(benzyloxycarbonyl)butyl(3-phenylpropyl)phosphinic acid

生成物 1

HCID 9949326HCID 9949326、化合物収率 125.1%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 4-methylbenzyl-O-benzylphosphinic acid (2, R=4-methylbenzyl)(2.16 g, 8.3 mmol) in THF (15 mL) was added sodium hydride (0.10 g, 60% dispersion in oil) followed by dibenzyl 2-methylenepentanedioate at 0 C., and the mixture was stirred at rt for 4 h. The reaction mixture was then diluted with EtOAc (50 mL) and poured into 1N HCl (50 mL). The organic layer was separated, dried over Na2SO4, and concentrated. This material was purified by silica gel chromatography (hexanes:EtOAc, 4:1 to 1:1) to give 3.41 g of 2,4-di(benzyloxycarbonyl)butyl(4-methylbenzyl)-o-benzylphosphinic acid (4, R=4-methylbenzyl) as colorless oil (70% yield): Rf 0.61 (EtOAc); 1H NMR (CDCl3) delta 1.6-1.8 (m, 1H), 1.9-2.0 (m, 2H), 2.1-2.4 (m, 6H), 2.7-2.9 (m, 1H), 3.05 (dd, J=9.0, 16.8 Hz, 2H), 4.8-5.1 (m, 6H), 7.0-7.1 (m, 4H), 7.2-7.4 (m, 15H).

後処理

  1. customThe organic layer was separated
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated
  4. customThis material was purified by silica gel chromatography (hexanes:EtOAc, 4:1 to 1:1)

出典と根拠

ORDレコード
ord-e97e5902c3424df28f82c477cb13c07f
出典データセット
uspto-grants-2000_01
特許番号
US06011021

反応ノート

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