A simple method for the preparation and selective functionalization of 4,5-diaminopyrazoles

• Published in: Tetrahedron letters Vol. 44; no. 14; pp. 3009 - 3011
• Main Authors: Blass, Benjamin E, Srivastava, Anil, Coburn, Keith R, Faulkner, Amy L, Seibel, William L
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 31.03.2003; Elsevier
• Subjects: 4,5-diaminopyrazoles; Chemistry; Chemistry, Organic; nitrosation; Physical Sciences; Science & Technology; urea derivatives; 4,5-diaminopyrazoles; urea derivatives; nitrosation

A simple procedure for the synthesis and further functionalization of 4,5-diaminopyrazoles using mild conditions is reported herein. The desired products were obtained in good yield, and the structures have been confirmed by X-ray crystallography. A simple procedure for the synthesis and further fun...