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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 1616706
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HRID 1616706 반응식
[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]
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4

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

생성물 1

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

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

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온도
60 °C

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-27b9f92f1d58473185e3906778df9a90
출처 데이터셋
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08765803B1

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