Dichloromethane → HCID 59779170, compound
Reaction equation
[C:1]1([C@:11]23[CH2:16][CH:15]2[CH2:14][O:13][C:12]3=[O:17])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.ClCCl>O1CCCC1>[C:1]1([C@:11]2([CH2:12][OH:17])[CH2:16][CH:15]2[CH2:14][OH:13])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
BMS (0.2 mL, 0.8 mmol) was added to (1S)-1-(1-naphthyl)-3-oxabicyclo[3.1.0]hexan-2-one (90 mg, 0.4 mmol) in dry tetrahydrofuran (1 mL), under nitrogen atmosphere. The reaction mass was refluxed for 5 hours and monitored by TLC (dichloromethane (100%)). The reaction mass was quenched with 10% potassium carbonate solution. The aqueous layer was extracted with dichloromethane (2×10 mL). The combined organic layer was dried over anhydrous sodium sulphate, filtered and evaporated under reduced pressure to yield 90 mg (98.5%) of desired product. 1H NMR δ(300 MHz,CDCl3): 1.09-1.43 (3H,m), 1.67-1.69 (2H,m,) 1.83-1.90 (1H,m), 3.5-3.7 (2H,m), 4.25-4.27 (2H,m), 7.4-7.65 (4H,m), (1H,m) 7.77-7.89 (2H,m), 8.25 (1H,brs).
Workup
- temperatureThe reaction mass was refluxed for 5 hours
- customThe reaction mass was quenched with 10% potassium carbonate solution
- extractionThe aqueous layer was extracted with dichloromethane (2×10 mL)
- dry with materialThe combined organic layer was dried over anhydrous sodium sulphate
- filtrationfiltered
- customevaporated under reduced pressure
Sources & evidence
- ORD record
- ord-6df09ca241e54a0c838c8ba166d19c0b
- Source dataset
- uspto-grants-2012_03
- Patent number
- US08138377B2
Reaction notes
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