Scientific American Supplement, No. 275, April 9, 1881

A NEW METHOD OF PREPARING METATOLUIDINE

By OSKAR WIDMAN

The author adds in small portions five parts metanitro-benzaldehyd to nine parts of phosphorus pentachloride, avoiding a great rise of temperature. When the reaction is over, the whole is poured into excess of cold water, quickly washed a few times with cold water, and dissolved in alcohol. After the first crystallization the compound melts at 65°, and is perfectly pure.

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