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Sulfide ethyl - Aniline, 2-

Salts of dithiocarbamic acid can be prepared by the addition of primary or secondary amines to carbon disulfide." This reaction is similar to 16-10. Hydrogen sulfide can be eliminated from the product, directly or indirectly, to give isothiocyanates (RNCS). Isothiocyanates can be obtained directly by the reaction of primary amines and CS2 in pyridine in the presence of dicyclohexylcarbodiimide. Aniline derivatives react with CS2 and NaOH, and then ethyl chloroformate to give the aryl isothiocyanate." In the presence of diphenyl phosphite and pyridine, primary amines add to CO2 and to CS2 to give, respectively, symmetrically substituted ureas... [Pg.1297]

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Anilines ethylated

Ethyl aniline

Ethyl sulfide

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