smokinskins
New Member
wondering how they make fun stuff. nothing specific, i wondering about any of it.
My geuss is that this guy wants to know how things are synthesized. He is also asking someone to give him a rundown on a synthesis. This is a 'fun' chemical known as GANESHA.
A solution of 15.4 g 2,5-dimethoxy-3,4-dimethylbenzaldehyde (check PIHKAL for the preparation) in 50 mL nitroethane was treated with 3 g anhydrous ammonium acetate and heated on the steam bath for 12 h. The excess nitroethane was removed under vacuum, and the residual oil was diluted with a equal volume of MeOH. There was the slow generation of deep red cottage-cheese-like crystals which were removed by filtration and air-dried to constant weight (9.3 g) with a mp 71-74 °C. Recrystal-lization from MeOH (10 ml/g) gave an analytical sample of 1-(2,5-dimethoxy-3,4-dimethylphenyl)-2-nitropropene with a mp of 82 °C sharp. Anal. (C13H17NO4) C,H,N. The NMR spectra (in CDCl3) and CI mass spectrograph (MH+ = 252) were proper.
To a suspension of 3.3 g LAH in 200 mL refluxing THF, well stirred and maintained under an inert atmosphere, there was added 4.2 g 1-(2,5-dimethoxy-3,4-dimethylphenyl)-2-nitropropene in 25 mL THF. The mixture was held at reflux for 48 h. After cooling, 3.3 mL H2O was added cautiously to decompose the excess hydride, followed by 3.3 mL 15% NaOH and finally another 10 mL H2O. The inorganic solids were removed by filtration, and washed with additional THF. The combined filtrate and washes were stripped of solvent under vacuum, and the residue (4.7 g of a deep amber oil) dissolved in dilute HCl. This was washed with CH2Cl2 (3x75 mL), then made basic with 5% NaOH and extracted with CH2Cl2. Removal of the solvent under vacuum yielded an amber oil that was distilled (105-115 °C at 0.4 mm/Hg) to give 1.2 g of a white oil. This was dissolved in 8 mL IPA, neutralized with 15 drops of concentrated HCl, and diluted with 250 mL anhydrous Et2O. After a period of time, there was a spontaneous appearance of white crystals which were removed by filtration, Et2O washed, and air dried. Thus was obtained 1.0 g of 2,5-dimethoxy-3,4-dimethylamphetamine hydrochloride (GANESHA) with a mp of 168-169 °C. This was not improved by recrystallization from either EtOAc or nitroethane. Anal. (C13H22ClNO2) N.
It's a very pleasent experience, very good PEA. It's a relative of the 2C compounds.
Yes, I do.
I'm pretty sure most drug syntheses are over your head.