31516-52-6Relevant articles and documents
The preparation and characterization of guanylurea nitrate and perchlorate salts
Klapoetke, Thomas M.,Sabate, Carles Miro
, p. 301 - 306 (2008)
Guanylurea nitrate (GUN) and guanylurea Perchlorate (GUP) were prepared from cyanoguanidine (CG) and concentrated nitric or perchloric acid, respectively. Both compounds were fully characterized by analytical and spectroscopic methods. Crystals of GUP were grown from water, and its crystal structure was determined by single-crystal X-ray diffraction. GUP crystallizes in the monoclinic space group P21/c with four molecules in the unit cell; different unit cell parameters are a = 8.0115(2) A, b=9.7328(2) A, c = 9.5770(2) A, and β = 105.89(1)°. The heats of combustion of both compounds were determined using oxygen bomb calorimetry. Finally, the EXPLO5 computer code was used to determine the detonation velocity (D = 5734 m s-1) and pressure (P = 10.6 GPa) of GUN as well as those of formulations with ammonium nitrate and dinitramide.
A new procedure to obtain ?-caprolactam catalyzed by a guanidinium salt
Fernández-Stefanuto,Verdía,Tojo
supporting information, p. 12830 - 12834 (2017/11/06)
A new procedure to prepare ?-caprolactam by the Beckmann rearrangement of cyclohexanone oxime is described. Treatment of the oxime with the novel salt cyanoguanidinium tosylate affords ?-caprolactam without the need of any other promoter.