"A solution composed of 0.99g of sodium dichromate and 1.33g of concentrated sulfuric acid dissolved in 4.46mL of water is added slowly with stirring to 1.65 g of l-ephedrine dissolved in 4.7mL of water and 0.52mL of concentrated sulfuric acid at room temperature. The mixture is stirred at room temperature for an additional 4-6 hours and then made alkaline with sodium hydroxide solution. The aqueous mixture is extracted with two volumes of chloroform and then with two volumes of ether. The organic extracts containing the free base of l-methcathinone are combined, treated with an excess of dry hydrogen chloride gas and the solvents evaporated. The residual l-methcathinone hydrochloride is stirred with petroleum ether, collected and purified by dissolving in ethanol and reprecipitating with ether; mp 182-184°C."
Source
With hydrogen peroxide it seems complicated to me.
The only thing I've read about is someone using "a method" with a microwave. But he didn't end up with anything.
Souce
It seems to me easier to use acidified chromium VI salts or even better potassium permanganate.
Source
With hydrogen peroxide it seems complicated to me.
The only thing I've read about is someone using "a method" with a microwave. But he didn't end up with anything.
Souce
It seems to me easier to use acidified chromium VI salts or even better potassium permanganate.