1-Trimethylsilyloxy-1-(furan-2-yl)ethylene → HCID 18679590, compound
Reaction equation
C[Si](C)(C)[O:3][C:4]([C:6]1[O:7][CH:8]=[CH:9][CH:10]=1)=[CH2:5].[CH:13]1([CH:19]=[CH:20][C:21]([C:23]2[CH:28]=[C:27]([F:29])[CH:26]=[CH:25][C:24]=2[OH:30])=[O:22])[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14]1>CS(C)=O>[CH:13]1([CH:19]([CH2:3][C:4]([C:6]2[O:7][CH:8]=[CH:9][CH:10]=2)=[O:5])[CH2:20][C:21]([C:23]2[CH:28]=[C:27]([F:29])[CH:26]=[CH:25][C:24]=2[OH:30])=[O:22])[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 70 °C
Procedure
1-Trimethylsilyloxy-1-(furan-2-yl)ethylene (1.64 g, 9.0 mmol; prepared according to J. Chem. Soc., Perkin Trans. I 1989, 1585) and CSF (0.41 g, 2.7 mmol) were added to a suspension of 3-cyclohexyl-1-(2-hydroxy-5-fluorophenyl)-2-propen-1-one on Wang resin (3.0 g, 1.8 mmol) in dimethyl sulfoxide (40 mL). The reaction mixture was heated to 70° C. for 3 h and the reaction was quenched with 10% AcOH/CH2Cl2. The resin was filtered, washed with DMF (×2) and alternating MeOH and CH2Cl2 (×5), and dried under high vacuum overnight to give 3.31 g of 3-cyclohexyl-1-(2-hydroxy-5-fluorophenyl)-5-(furan-2-yl)-1,5-pentanedione on Wang resin.
Workup
- customthe reaction was quenched with 10% AcOH/CH2Cl2
- filtrationThe resin was filtered
- washwashed with DMF (×2)
- customdried under high vacuum overnight
Sources & evidence
- ORD record
- ord-f1ebbb419bcd45aca3fe885df61ef304
- Source dataset
- uspto-grants-2002_05
- Patent number
- US06384057B1
Reaction notes
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