Hydrochloric Acid → 85677-99-2
Reaction equation
[K].[OH:2][CH2:3][CH2:4][O:5][C:6]([C:8]1[C:9]([C:20]2[CH:25]=[CH:24][CH:23]=[C:22]([N+:26]([O-:28])=[O:27])[CH:21]=2)=[C:10]([C:17](O)=[O:18])[C:11]([CH2:15][OH:16])=[N:12][C:13]=1[CH3:14])=[O:7].Cl>O>[CH3:14][C:13]1[N:12]=[C:11]2[CH2:15][O:16][C:17](=[O:18])[C:10]2=[C:9]([C:20]2[CH:25]=[CH:24][CH:23]=[C:22]([N+:26]([O-:28])=[O:27])[CH:21]=2)[C:8]=1[C:6]([O:5][CH2:4][CH2:3][OH:2])=[O:7]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
4 g of potassium salt of 2-hydroxymethyl-6-methyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylic acid 5-(2-hydroxyethyl) ester (Example 52) were dissolved in 4 ml of water and acidified with concentrated hydrochloric acid. After standing overnight at room temperature, the mixture was diluted with water, the oil which separated out was extracted with methylene chloride, the organic extracts, after drying over sodium sulphate, were evaporated in vacuo and the residue was recrystallized from isopropanol, melting point 130° C.
Workup
- customthe oil which separated out
- extractionwas extracted with methylene chloride
- dry with materialthe organic extracts, after drying over sodium sulphate
- customwere evaporated in vacuo
- customthe residue was recrystallized from isopropanol, melting point 130° C.
Sources & evidence
- ORD record
- ord-242b188dcca04571859c340cb875ea00
- Source dataset
- uspto-grants-1985_02
- Patent number
- US04497821
Reaction notes
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