Methanol → Sodium Methoxide
Reaction equation
[H-].[Na+:2].Cl[C:4]1[CH:16]=[C:15](Cl)[CH:14]=[CH:13][C:5]=1[CH2:6][C:7]1[N:8]=[N:9][CH:10]=[CH:11][CH:12]=1.[CH3:18][OH:19]>>[CH3:18][O-:19].[Na+:2].[CH3:18][O:19][CH:6]([C:7]1[N:8]=[N:9][CH:10]=[CH:11][CH:12]=1)[C:5]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:4]=1Participants
5
Procedure
A solution of sodium methoxide was prepared by the addition of sodium hydride (0.72 g.) to methanol (25 ml.). (±) 3-α-Chlorobenzylpyridazine (prepared as described in Example 2) (4.1 g.) was heated at reflux in this solution for 2 hours and the mixture was evaporated to dryness. The residue was dissolved in a mixture of diethyl ether and water and the ethereal layer was separated, dried over sodium sulphate and evaporated to give a brown oil. Distillation of this oil gave (±) 3-α-methoxybenzylpyridazine (1.8 g.), b.p. 140°-180° C./0.2-0.4 mm.Hg.
Workup
- temperatureat reflux in this solution for 2 hours
- customthe mixture was evaporated to dryness
- dissolutionThe residue was dissolved in a mixture of diethyl ether and water
- customthe ethereal layer was separated
- dry with materialdried over sodium sulphate
- customevaporated
- customto give a brown oil
- distillationDistillation of this oil
Sources & evidence
- ORD record
- ord-f4cea04706ea45b78a789c209f2a33a4
- Source dataset
- uspto-grants-1978_01
- Patent number
- US04067723
Reaction notes
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