Synthesis of vicinal aminoiodo- and (acetylamino)iodo-l-alkylpyrazoles
摘要:
3- and 5-(Acetylamino)-4-iodo-1-alkylpyrazoles were obtained by successive acylation and iodination from 3- and 5-amino-1-alkylpyrazoles without isolating intermediate (acetylamino)pyrazoles. 3- and 5-Iodo- and 3,5-diiodo-4-amino-1-methylpyrazoles were synthesized from appropriate iodonitropyrazoles by reduction with SnCl2 in HCl.
Peculiarities of copper(I)- and palladium-catalyzed cross-coupling of terminal alkynes with vicinal amino- and (N-acetylamino)-iodopyrazoles. Synthesis of alkynylaminopyrazoles