... Preparation of Isothiocyanates Using Cyanamide" RNCS Yield IR (NCS) 'H NMRb (%) (cm-') (6) ... Found: C, 45.31; H, 8.16; N, 5.13 General Procedure for Isothiocyanation of Ary1amines.- To a std ... ttt institute for Organic Chemistry Technical University P. 0. Box 91,1521 Budapest ...