Ueber das Dimethyläthanolamin

Abstract

Das Aethylsulfon-acetanilid ist in Wasser fast unliislich, in Aether ond Beneol schwer, in Aceton und heissem Alkohol aber leicht 16slich. Die Alkalien wirken auf daeselbe in der Kslte nicht ein; bei langerem Kochen geht es aber unter Abspaltung der Acetylgruppe in Liisung.F r e i b u r g i/B., September 1'301.

The micro-estimation and origin of methylamine in Mercurialis perennis L.

“…Leaves (20-50 g.) of Mercurialis perennis were infiltrated with solutions of nitrogenous bases and amino-acids in an attempt to determine the source of methylamine in the tissues. Solutions of the bases (or their salts) and amino-acids were neutralized (pH 7-0) where necessary and made to 005 M. N-Methylethanolamine and dimethylethanolamine were prepared by the method of Knorr & Matthes (1898, 1901. N-Methylethanolamine and dimethylamine hydrochlorides were purified by means of the nitroso derivatives, and traces of methylamine found in the sample oftrimethylamine hydrochloride were removed by treatment with nitrous acid and subsequent distillation.…”

THE TRUE STRUCTURE OF DIMETHYLAMINOETHYL ESTERS OF AROMATIC PHOSPHONIC ACIDS1

“…Tetramethylpiperazinium ion, although an unlikely product for this reaction, forms a dipicrate of almost the same elemental composition. However, it is reported to decompose without melting at 315°( 2) 4. Melting points are uncorrected.…”