Methylamines
المؤلف:
sami matar & Lewis. F. Hatch
المصدر:
Chemistry of PETROCHEMICAL PROCESSES
الجزء والصفحة:
p 160
16-8-2017
1326
Methylamines
Methylamines can be synthesized by alkylating ammonia with methyl halides or with methyl alcohol. The reaction with methanol usually occurs at approximately 500°C and 20 atmospheres in the presence of an aluminum silicate or phosphate catalyst. The alkylation does not stop at the monomethylamine stage, because the produced amine is a better nucleophile than ammonia. The product distribution at equilibrium is: monomethylamine MMA (43%), dimethylamine DMA (24%), and trimethylamine TMA (33%):
