Synthesis of nitrosothioureas. 15 N Nmr evidence for the formation of thionitrosyl compounds in the nitrosation of thioureas

JW Lown, SMS Chauhan

Index: Lown, J. William; Chauhan, Shive M. S. Journal of the Chemical Society, Chemical Communications, 1981 , # 14 p. 675 - 676

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Abstract

Nitrosothioureas may be prepared by treatment of thioureas with NaNO2 in 0· 1 N HCl at–5° C by direct N-nitrosation whereas 15N nmr studies at–10° C which employed specifically 15N-enriched compounds revealed the intermediacy of a thionitrosyl compound under more acidic conditions which gave the urea by hydrolysis.