3,6-Dioxabicyclo[3.1.0]hexane → 946125-01-5
Reaction equation
[O:1]1[CH:6]2[CH:2]1[CH2:3][O:4][CH2:5]2.[C:7]1([Mg]Br)[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1>[Cu]I.C1COCC1>[C:7]1([C@@H:2]2[CH2:3][O:4][CH2:5][C@H:6]2[OH:1])[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1Participants
5
Procedure
A second batch was obtained according to the above procedure reacting 3,4-epoxy-tetrahydrofuran (1.0 g, 11.62 mmol), phenylmagnesium bromide (3.872 mL, 11.62 mmol), CuI (155.67 mg, 0.813 mmol) and dry THF (total volume of 3.6 mL). The residues obtained from the above two batches was mixed and purified by flash chromatography (silica; DCM in MeOH 0/100 to 10/90). The desired fractions were collected and evaporated in vacuo to give I-42 (5.5 g, 74%) as a yellow oil.
Workup
- customA second batch was obtained
- customThe residues obtained from the above two batches
- additionwas mixed
- custompurified by flash chromatography (silica; DCM in MeOH 0/100 to 10/90)
- customThe desired fractions were collected
- customevaporated in vacuo
- customto give I-42 (5.5 g, 74%) as a yellow oil
Sources & evidence
- ORD record
- ord-21fb0cf3eef74560a22d4279e86237f9
- Source dataset
- uspto-grants-2016_03
- Patent number
- US09271967B2
Reaction notes
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