74321-69-0Relevant articles and documents
Acylcarbodiimides, IV. Preparation and Some Reactions of Carbamoylcarbodiimides
Goerdeler, Joachim,Raddatz, Siegfried
, p. 1095 - 1105 (2007/10/02)
Starting from carbamoyl-thioureas (1) and with the aid of cyanuric trichloride/triethylamine several carbamoylcarbodiimides (2) were prepared.In the case of aryl-substituted 1, elimination of arylamine competed with that of hydrogen sulfide.Rearrangement of a guanyl isocyanate (6) formed in situ afforded 2a on another way.Many carbodiimides 2 add water and other protic nucleophiles very rapidly.The exact structure of the adducts 7 - 9 is discussed.