Can this Hexamethylenetetramine a replace for cyclohexylamine or butylamine in the production of MDP2NP from piperonal and nitroethane?
"Dissolve 140g (1 mole) of hexamethylenetetramine (urotropine, hexamine) and 157.5g (1.05 moles) sodium iodide (or 174g (1.05 moles) potassium iodide) in 1000ml of hot 95% ethyl alcohol (190 proof grain alcohol). 243g of bromosafrole (1 mole) is then added and the solution is allowed to stand until no precipitation occurs. A stream of HCl gas is then run into the mixture where the precipitate is hydrolyzed, dissolves and ammonium chloride precipitates. The ammonium chloride is filtered off and the alcohol of the filtrate is removed through distillation under reduced pressure. Purify the crude amine left by releasing the free base with NaOH solution (45g NaOH in 135 ml water). Extract the oil with ether (or toluene, methylene chloride etc.) and reconvert to the HCl salt with a stream of HCl gas. Filter the crystals formed from the ether."
"Dissolve 140g (1 mole) of hexamethylenetetramine (urotropine, hexamine) and 157.5g (1.05 moles) sodium iodide (or 174g (1.05 moles) potassium iodide) in 1000ml of hot 95% ethyl alcohol (190 proof grain alcohol). 243g of bromosafrole (1 mole) is then added and the solution is allowed to stand until no precipitation occurs. A stream of HCl gas is then run into the mixture where the precipitate is hydrolyzed, dissolves and ammonium chloride precipitates. The ammonium chloride is filtered off and the alcohol of the filtrate is removed through distillation under reduced pressure. Purify the crude amine left by releasing the free base with NaOH solution (45g NaOH in 135 ml water). Extract the oil with ether (or toluene, methylene chloride etc.) and reconvert to the HCl salt with a stream of HCl gas. Filter the crystals formed from the ether."