[vanillin.eugenol.demethylation.methylation]  [2-heac.nitroaldol.condensation]  [nabh4.copper.reduction]  [zn.hcl.reduction]  [back]

 russian patents works!!! Zn-HCl nitrostryrene rdxn, sunlight, Hive Novel Discourse, 27.09.2001
 Восстановление цинком\солянкой, прописи..., DDT, www.hyperlab.info, 09.01.2006
 an experimental evaluation of the Zinc Hydrochloric Acid reduction of nitrostyrenes persona, www.hyperlab.info, Post #514742, 23.11.2007
 Chemoselective Zinc.HCl Reduction of Halogenated b-Nitrostyrenes_ Synthesis of Halogenated Dopamine Analogues, Justin J. Maresh et al, DePaul University Chicago, 22.09.2014 [pdf]
 Zn/HCl reduction of nitrostyrenes, slave2carbon, The Vespiary - Drug Synthesis & Extraction, 26.04.2020.  [pdf]
 mescaline salt crystallization, Snyder, The Vespiary - Drug Synthesis & Extraction, 05.09.2023.

 1  2
 After the addition of KOH, the IPA layer started to appear, white flakes were in the top layer as well as in the bottom layer.
 The upper layer was loosened with a glass rod and fell down. Then most of the top layer was sucked off with a syringe and
 only this part was filtered, numizmat22, www.hyperlab.info, 01.05.2012


2-(4-bromo-2,5-dimethoxyphenyl)ethanamine
 name  [2c-h]  molweight  cas number  melting point
1,4-dimethoxy-2-(2-nitroethyl)benzene (substrat) 211.21 205826-84-2
2-(4-bromo-2,5-dimethoxyphenyl)ethanamine freebase (product) 260.13
Hydrochlorid acid   36.46
2-(4-bromo-2,5-dimethoxyphenyl)ethanamine hydrochloride (product) 296.59 56281-37-9 236 238

2-(4-ethylsulfanyl-2,5-dimethoxyphenyl)ethanamine
 name  [m]  molweight  cas number  melting point
2-[2,5-Dimethoxy-4-(ethylthio)phenyl]-2-Nitroethene (substrat) 269.92
2-(4-ethylsulfanyl-2,5-dimethoxyphenyl)ethanamine freebase (product) 241.35
Hydrochloride acid   36.46
2-(4-ethylsulfanyl-2,5-dimethoxyphenyl)ethanamine hydrochloride (product) 277.81 204 207

2-(4-propylsulfanylphenyl-2,5-dimethoxy)ethanamine
 name  [m]  molweight  cas number  melting point
2-[2,5-Dimethoxy-4-(propylthio)phenyl]-2-Nitroethene (substrat) 283.34
2-(4-propylsulfanylphenyl-2,5-dimethoxy)ethanamine (product) 255.38
Hydrochloride acid   36.46
2-(4-propylsulfanylphenyl-2,5-dimethoxy)ethanamine hydrochloride (product) 291.84 850140-15-7

2-(3,4,5-trimethoxyphenyl)ethanamine
 name  [m]  molweight  cas number  melting point
1,2,3-trimethoxy-5-[(E)-2-nitroethenyl]benzene (substrat) 239.22 6316-70-7
2-(3,4,5-trimethoxyphenyl)ethanamine freebase (product) 211.26
Sulphuric acid   98.08
2-(3,4,5-trimethoxyphenyl)ethanamine sulphate (product) 309.34 5967-42-0 183 186