Bis (triethylammoniothio) methylenemalononitrile.-To a solution of 66 g.(1 mole) of malononitrile and 76 g.(1 mole) of carbon disulfide in 200 ml. of acetonitrile was added 202 g.(2 moles) of triethylamine over 15 min., and the solution was stirred for 30 min. and then diluted with ethyl ether. The yellow needles separated quickly and were collected by filtration, washed with ethyl ether, and dried in air, 334 g.(lOO~ o), mp 91-93'. An analytical ...
