... While the chemistry of chloroformates is extensive, that of cyanoformates is not. ... Found: C, 23.87; H, 1.32. Isopropyl cyanoformate from isopropyl chloroformate (Research Organic/Inorganic Chemical Co.): NMR septet (1 H) 6 5.2, J = 7 Hz, d (6 H) 1.4, J = 7 Hz; ir 2250 C=N ...