Efficient synthesis of some new functionalized 3-amino- and 5-aminopyrazoles derivatives

Article abstract of DOI:10.1007/s11164-014-1551-7

Cyanoacetic acid hydrazide derivatives were utilized as key intermediates for the synthesis of some new 3-amino- and 5-aminopyrazole derivatives. Coupling of N′-phenylsulfonyl-2-cyanoacetohydrazide (1) and 1-(2-cyanoacetyl)-4-phenyl thiosemicarbazide (4)