Methyl formate → HCID 23367277, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]#[N:9])=[CH:4][N:3]=1.[CH3:10][O:11]C=O>C1(C)C=CC=CC=1>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][NH:9][CH:10]=[O:11])=[CH:4][N:3]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
15 g of 91.7% pure (0.1 mol) 2-chloro-5-cyanopyridine were hydrogenated in a mixture of 70 ml of methylformate and 50 ml of toluene analogously to Example 1. After analysis by gas chromatography, 2-chloro-5-(formylaminomethyl)pyridine had formed in a yield of 86.7% of theory. 2-Chloro-5-(aminomethyl)pyridine (3.6% of theory) and di(2-chloro-5-methylpyridyl)amine (2.0% of theory) were identified as by-products. The crude product was boiled under reflux with 30 ml of 20% strength NaOH for 2 hours. After extraction with CH2Cl2 and concentration, the residue was distilled in vacuo. 12 g of 98.7% pure goods, corresponding to 83.1% of theory, based on the 2-chloro-5-cyanopyridine, were obtained.
Sources & evidence
- ORD record
- ord-7c0466a3132f41db843b6841575149f6
- Source dataset
- uspto-grants-1996_12
- Patent number
- US05580983
Reaction notes
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