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Hydrochloric Acid → Ethyl (1RS)-1-(3-Methoxyphenyl)-3-(3,4-methylenedioxyphenyl)indene-2-carboxylate

HRID 862928
ノート
印刷プレビュー

反応式

HRID 862928 の反応式
O[C:2]1([C:25]2[CH:30]=[CH:29][CH:28]=[C:27]([O:31][CH3:32])[CH:26]=2)[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4]([C:11]2[CH:16]=[CH:15][C:14]3[O:17][CH2:18][O:19][C:13]=3[CH:12]=2)=[C:3]1[C:20]([O:22][CH2:23][CH3:24])=[O:21].C([SiH](CC)CC)C.B(F)(F)F.CCOCC.Cl>C(Cl)Cl>[CH3:32][O:31][C:27]1[CH:26]=[C:25]([CH:2]2[C:10]3[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=3)[C:4]([C:11]3[CH:16]=[CH:15][C:14]4[O:17][CH2:18][O:19][C:13]=4[CH:12]=3)=[C:3]2[C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH:30]=[CH:29][CH:28]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 8000Boron trifluoride etherateHCID 12052TriethylsilaneHCID 18969638Ethyl(1RS)-1-Hydroxy-1-(3-methoxyphenyl)-3-(3,4-methylenedioxypheny)indene-2-carboxylate

生成物 1

HCID 18969664Ethyl (1RS)-1-(3-Methoxyphenyl)-3-(3,4-methylenedioxyphenyl)indene-2-carboxylate収率 31%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of ethyl(1RS)-1-hydroxy-1-(3-methoxyphenyl)-3-(3,4-methylenedioxyphenyl)-indene-2-carboxylate (150 mg, 0.35 mmol) in CH2Cl2 was added triethylsilane (67 μl, 0.42 mmol), followed by boron trifluoride etherate (213 μl, 1.73 mmol). The reaction mixture was allowed to stir for 30 min, at which time was added slowly 5% aqueous HCl. The mixture was extracted with EtOAc. The organic extract was washed successively with H2O, 5% aqueous NaHCO3, H2O and saturated aqueous NaCl and dried (MgSO4). The solvent was removed in vacuo, and the residue was purified by flash chromatography, eluting with 10% EtOAc/hexanes to provide the title compound (45 mg, 31%) as a mixture of Δ1 and Δ2 double bond isomers.

後処理

  1. extractionThe mixture was extracted with EtOAc
  2. extractionThe organic extract
  3. washwas washed successively with H2O, 5% aqueous NaHCO3, H2O and saturated aqueous NaCl
  4. dry with materialdried (MgSO4)
  5. customThe solvent was removed in vacuo
  6. customthe residue was purified by flash chromatography
  7. washeluting with 10% EtOAc/hexanes

出典と根拠

ORDレコード
ord-43bea72849f44786b4bcc2b8ea41d5c4
出典データセット
uspto-grants-1998_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05719182

反応ノート

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