Hexamethylenetetramine → HCID 11063024, compound
Reaction equation
[Cl:1][C:2]1[N:7]2[CH:8]=[CH:9][N:10]=[C:6]2[CH:5]=[CH:4][CH:3]=1.C1N2CN3CN(C2)CN1C3.[C:21](OCC)(=[O:23])C.O1CCCC1>C(O)(=O)C>[Cl:1][C:2]1[N:7]2[C:8]([CH:21]=[O:23])=[CH:9][N:10]=[C:6]2[CH:5]=[CH:4][CH:3]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 5-chloroimidazo[1,2-a]pyridine (997 mg) and hexamethylenetetramine (1.8 g) in acetic acid (10 ml) was stirred at 90° C. for 5 hours. After the reaction mixture was allowed to cool, ethyl acetate-tetrahydrofuran (4/1; 200 ml) was added and the mixture was washed with saturated aqueous solution of sodium chloride. The organic layer was neutralized with 2N-aqueous solution of sodium hydroxide, dried over MgSO4, and concentrated. The resulting crystals were rinsed with diethyl ether to provide the title compound (440 mg, 37%).
Workup
- temperatureto cool
- washthe mixture was washed with saturated aqueous solution of sodium chloride
- dry with materialdried over MgSO4
- concentrationconcentrated
- washThe resulting crystals were rinsed with diethyl ether
Sources & evidence
- ORD record
- ord-60990d2c51b04d02b60d7fd561fdce0f
- Source dataset
- uspto-grants-2001_05
- Patent number
- US06235731B1
Reaction notes
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