Ethylene Glycol → HCID 70392094, compound
Reaction equation
[CH3:1][C:2]1[C:7]([C:8]([O:10]CC)=[O:9])=[C:6]([N:13]2[CH2:18][CH2:17][S:16][CH2:15][CH2:14]2)[CH:5]=[C:4]([CH3:19])[N+:3]=1[O-:20].[OH-].[K+].C(O)CO.[ClH:27]>O>[ClH:27].[CH3:1][C:2]1[C:7]([C:8]([OH:10])=[O:9])=[C:6]([N:13]2[CH2:14][CH2:15][S:16][CH2:17][CH2:18]2)[CH:5]=[C:4]([CH3:19])[N+:3]=1[O-:20]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
38.2 g (0.129 mol) of ethyl 2,6-dimethyl-4-thiomorpholinylpyridine-3-carboxylate 1-oxide(see Table 1, Example 19), 10.6 g (0.189 mol) of solid potassium hydroxide and 100 ml of ethylene glycol were heated at 170° C. for 5 hours. The mixture was then diluted with water, neutralized with 6 N hydrochloric acid, and the water and ethylene glycol were removed by distillation under reduced pressure. The residue was taken up in ethanol, insolubles were removed by filtration, and the solution was boiled with active charcoal, filtered once more and ethanolic HCl was added. The mixture was evaporated to dryness, and the hydrochloride was recrystallized from methanol.
Workup
- customthe water and ethylene glycol were removed by distillation under reduced pressure
- custominsolubles were removed by filtration
- filtrationfiltered once more
- additionethanolic HCl was added
- customThe mixture was evaporated to dryness
- customthe hydrochloride was recrystallized from methanol
Sources & evidence
- ORD record
- ord-905934552de8484789a1e9d8ce24cdda
- Source dataset
- uspto-grants-1989_08
- Patent number
- US04859663
Reaction notes
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