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2-Fluorobenzoyl isothiocyanate → tert-butyl 2-(3-(2-fluorobenzoyl)thioureido)-5,5-dimethyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate

HRID 2207768
ノート
印刷プレビュー

反応式

HRID 2207768 の反応式
[NH2:1][C:2]1[S:12][C:5]2[CH2:6][O:7][C:8]([CH3:11])([CH3:10])[CH2:9][C:4]=2[C:3]=1[C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14].[F:20][C:21]1[CH:31]=[CH:30][CH:29]=[CH:28][C:22]=1[C:23]([N:25]=[C:26]=[S:27])=[O:24]>C1COCC1>[F:20][C:21]1[CH:31]=[CH:30][CH:29]=[CH:28][C:22]=1[C:23]([NH:25][C:26](=[S:27])[NH:1][C:2]1[S:12][C:5]2[CH2:6][O:7][C:8]([CH3:11])([CH3:10])[CH2:9][C:4]=2[C:3]=1[C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])=[O:24]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 156505082-Fluorobenzoyl isothiocyanateHCID 86731954tert-butyl 2-amino-5,5-dimethyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate

生成物 1

HCID 86731959tert-butyl 2-(3-(2-fluorobenzoyl)thioureido)-5,5-dimethyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate収率 50%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
60 °C

実験手順

To a solution of tert-butyl 2-amino-5,5-dimethyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate (50 mg, 0.18 mmol) in THF (3 mL) was added 2-fluorobenzoyl isothiocyanate (35.2 mg, 0.19 mmol) and the mixture heated at 60° C. for 16 h. The solvent was removed in vacuo. The residue was sonicated (1 min) with cold EtOH, filtered and the resulting solid rinsed with cold EtOH to yield tert-butyl 2-(3-(2-fluorobenzoyl)thioureido)-5,5-dimethyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate (41 mg, 0.088 mmol, 50% yield) as a pale yellow solid. 1H NMR (400 MHz, CDCl3) δ 14.70 (s, 1H), 9.69 (s, 1H), 8.25-8.11 (m, 1H), 7.63-7.49 (m, 1H), 7.36-7.26 (m, 1H), 7.23-7.17 (m, 1H), 4.72 (s, 2H), 2.73 (d, J=6.3, 2H), 1.58 (d, J=2.4, 9H), 1.29 (d, J=1.7, 6H). 13C NMR (101 MHz, CDCl3) δ 173.27, 164.59, 161.79, 161.21, 161.18, 159.30, 147.36, 135.67, 135.57, 132.79, 129.15, 125.37, 125.34, 124.64, 119.06, 118.96, 118.06, 116.70, 116.46, 82.42, 70.79, 59.81, 38.24, 28.49, 26.48.

後処理

  1. customThe solvent was removed in vacuo
  2. customThe residue was sonicated (1 min) with cold EtOH
  3. filtrationfiltered
  4. washthe resulting solid rinsed with cold EtOH

出典と根拠

ORDレコード
ord-72acab33ad3e41208383a52ec6f97902
出典データセット
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09376452B2

反応ノート

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このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート