Methylamine → N~1~-[(4-Chlorophenyl)methyl]-N'~1~-methyl-2-nitroethene-1,1-diamine

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Reaction Steps

In 100 of EtOH on reflux was dissolved 2,59 g (0.01 mole) of 1-(4-chlorobenzyl) amino-1-methylthio-2-nitroethylene, and with refluxing continued, a solution of 1.49 g of 40% aqueous methylamine solution in 10 ml of EtOH was added cropwise over a period of 50 minutes. After completion of dropwise addition, the mixture was further refluxed for 15 minutes, at the end of which time it was cooled with ice-water, whereupon crystals separated out. The crystals were collected by filtration, washed with EtOH and ether in that order, and dried. The procedure gave 1.66 g of the title compound as white crystals.

Provenance & Evidence