Diethyl Ether → 3-Dipropylamino-5-isopropenylchroman
Reaction equation
[CH2:1]([N:4]([CH2:18][CH2:19][CH3:20])[CH:5]1[CH2:14][C:13]2[C:8](=[CH:9][CH:10]=[CH:11][C:12]=2[C:15](=O)[CH3:16])[O:7][CH2:6]1)[CH2:2][CH3:3].[CH2:21](OCC)C>>[CH2:1]([N:4]([CH2:18][CH2:19][CH3:20])[CH:5]1[CH2:14][C:13]2[C:8](=[CH:9][CH:10]=[CH:11][C:12]=2[C:15]([CH3:21])=[CH2:16])[O:7][CH2:6]1)[CH2:2][CH3:3]Participants
3
Procedure
3-Dipropylamino-5-acetylchroman (Example 7; 0.40 g, 1.45 mmol) was dissolved in dry diethyl ether (2.0 ml) and this solution was added to the previously formed Wittig-reagent.
Workup
- additionthis solution was added to the previously formed Wittig-reagent
Sources & evidence
- ORD record
- ord-723210c71eba4d9e8254adc6a1a81084
- Source dataset
- uspto-grants-1997_06
- Patent number
- US05639772
Reaction notes
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