You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
"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."
Maybe can be a yes?
Maybe can be a yes?
About Us
Our team brings together the best specialists from different fields.
We are ready to share our experience, discuss difficult issues and find new solutions.