New Strategy for the Synthesis of Phosphonyl Pyrazoles
摘要:
Phosphonyl hydrazones react with DMF/POCl3 to afford 3-phosphonyl pyrazoles. Phosphonyl methylene hydrazones react with DMF/POCl3 to provide 4-phosphonyl pyrazoles. 5-Phosphonyl pyrazoles are obtained from the reaction of phosphonyl chlorovinylaldehydes with phenylhydrazine.
New Strategy for the Synthesis of Phosphonyl Pyrazoles
作者:Hu Chen、Ding-Quan Qian、Guo-Xiang Xu、Yu-Xiu Liu、Xiao-Dong Chen、Xiao-Dong Shi、Ru-Zhen Cao、Lun-Zu Liu
DOI:10.1080/00397919908085923
日期:1999.11
Phosphonyl hydrazones react with DMF/POCl3 to afford 3-phosphonyl pyrazoles. Phosphonyl methylene hydrazones react with DMF/POCl3 to provide 4-phosphonyl pyrazoles. 5-Phosphonyl pyrazoles are obtained from the reaction of phosphonyl chlorovinylaldehydes with phenylhydrazine.