Methylamine hydrochloride
CAS number: 593-51-1
Methylamine hydrochloride is obtained by heating two equivalents of formaldehyde (as formalin) with ammonium chloride at about 100°.
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Preparation of 2–5. a) pentafluorophenol, 1,3-diisopropylcarbodiimide, CH2Cl2; b) 2-phenylethylamine, 4-aminobutyric acid, or methylamine hydrochloride, iPr2EtN, DMF, 49% (13a), 70% (13b), or 68% (13c) yield for two steps; c) Ac2O, pyridine, then (for 4 and 6) H2O/dioxane, 99% (3), 81% (4), 90% (5), or 97% (6).
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