Reaction equation
[CH2:1]([CH:7]([CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18])[CH2:8][CH2:9][NH2:10])[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6].[N:19]1[CH:24]=[C:23]([C:25]([OH:27])=O)[CH:22]=[CH:21][C:20]=1[C:28]([OH:30])=O>>[CH2:1]([CH:7]([CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18])[CH2:8][CH2:9][NH:10][C:28]([C:20]1[CH:21]=[CH:22][C:23]([C:25]([NH:10][CH2:9][CH2:8][CH:7]([CH2:1][CH2:2][CH2:3][CH2:4][CH2:5][CH3:6])[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18])=[O:27])=[CH:24][N:19]=1)=[O:30])[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6]Participants
3
Procedure
N,N'-bis(3-hexylundecyl)pyridine-2,5-dicarboxamide was prepared using the method of Example 1 from 3-hexylundecylamine and pyridine 2,5-dicarboxylic acid. The product which was a brown oil was not distilled but was analysed as being 92% of theoretical strength (based on MW 642) by titration of an aliquot in acetic acid with perchloric acid. It was made up as a 0.2M solution in AROMASOL H and tested for extraction of copper in the presence of chloride ion using the method of Examples 6 and 7. The results are given in Table 3. They indicated that this compound is a strong extractant for copper which would be best employed in extracting copper from solutions of relatively low chloride ion concentration and relatively low acidity.
Workup
- distillationwas not distilled
- extractiontested for extraction of copper in the presence of chloride ion using the method of Examples 6 and 7
- extractionin extracting copper
- concentrationfrom solutions of relatively low chloride ion concentration and relatively low acidity
Sources & evidence
- ORD record
- ord-316f4e3bfce8435190c10faa5b6fe4a4
- Source dataset
- uspto-grants-1988_10
- Patent number
- US04775763
Linked notes
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