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Hydrochloric Acid → 4-[[4-(5-methyl-thiophen-2-yl)-2,2-dimethyl-(2H)-thiochromen-6-yl]-ethyl]benzoic acid

HRID 619638
ノート
印刷プレビュー

反応式

HRID 619638 の反応式
[CH2:1]([C:3]1[S:7][C:6]([C:8]2[C:17]3[C:12](=[CH:13][CH:14]=[C:15]([C:18]#[C:19][C:20]4[CH:30]=[CH:29][C:23]([C:24]([O:26]CC)=[O:25])=[CH:22][CH:21]=4)[CH:16]=3)[S:11][C:10]([CH3:32])([CH3:31])[CH:9]=2)=[CH:5][CH:4]=1)C.C(C1(C2C3C(=CC=C(C#CC4C=CC(C(OCC)=O)=CC=4)C=3)SC(C)(C)C=2)CC=CS1)C.[OH-].[Na+].Cl>C1COCC1.CCO>[CH3:1][C:3]1[S:7][C:6]([C:8]2[C:17]3[C:12](=[CH:13][CH:14]=[C:15]([CH2:18][CH2:19][C:20]4[CH:21]=[CH:22][C:23]([C:24]([OH:26])=[O:25])=[CH:29][CH:30]=4)[CH:16]=3)[S:11][C:10]([CH3:32])([CH3:31])[CH:9]=2)=[CH:5][CH:4]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 21846694ethyl 4-[[4-(5-ethylthiophen-2-yl)-2,2-dimethyl-(2H)-thiochromen-6-yl]-ethynyl]-benzoateHCID 86754562HCID 86754562、化合物

生成物 1

HCID 218466784-[[4-(5-methyl-thiophen-2-yl)-2,2-dimethyl-(2H)-thiochromen-6-yl]-ethyl]benzoic acid収率 73.7%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of ethyl 4-[[4-(5-ethylthiophen-2-yl)-2,2-dimethyl-(2H)-thiochromen-6-yl]-ethynyl]-benzoate (Compound 231, 23.0 mg, 0.05 mmol) in 1.0 mL THF and 1.0 mL EtOH was added NaOH (40.0 mg, 1.0 mmol, 1.0 mL of a 1M aqueous solution). The resulting solution was stirred overnight at room temperature. The reaction mixture was acidified with 10% aqueous HCl and extracted with EtOAc. The combined organic layers were washed with H2O, saturated aqueous NaCl, and dried (Na2SO4) before removing the solvent under reduced pressure. The residual solid was recrystallized from CH3CN to give 15.5 mg (72%) of the title compound as an orange solid. 1H NMR (300 MHz, d6 -acetone) δ: 8.03 (2H, d, J=8.3 Hz), 7.63 (2H, d, J=8.3 Hz), 7.61 (1H, s), 7.44 (2H, s), 6.90 (1H, d, J=3.5 Hz), 6.83 (1H, d, J=3.5 Hz), 6.10 (1H, s), 2.86 (2H, q, J=7.6 Hz), 1.45 (6H, s), 1.30 (3H, t, J=7.6 Hz).

後処理

  1. extractionextracted with EtOAc
  2. washThe combined organic layers were washed with H2O, saturated aqueous NaCl
  3. dry with materialdried (Na2SO4)
  4. custombefore removing the solvent under reduced pressure
  5. customThe residual solid was recrystallized from CH3CN

出典と根拠

ORDレコード
ord-c486651665d34fe09127ea2cf088f24d
出典データセット
uspto-grants-1999_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05958954

反応ノート

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