New strategy for the synthesis of phosphonyl pyrazoles

Article abstract of DOI:10.1080/00397919908085923

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.

Full text of DOI:10.1080/00397919908085923

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Synthetic Communications: An
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New Strategy for the Synthesis of
Phosphonyl Pyrazoles
Hu Chen a , Ding-Quan Qian a , Guo-Xiang Xu a , Yu-Xiu Liu a
,
Xiao-Dong Chen a , Xiao-Dong Shi a , Ru-Zhen Cao a & Lun-Zu
Liu a
a National Key Laboratory of Elemento-organic Chemistry,
Institute of Elemento-organic Chemistry, Nankai University ,
Tianjin, 300071, P.R. China
Published online: 17 Sep 2007.
To cite this article: Hu Chen , Ding-Quan Qian , Guo-Xiang Xu , Yu-Xiu Liu , Xiao-Dong Chen ,
Xiao-Dong Shi , Ru-Zhen Cao & Lun-Zu Liu (1999) New Strategy for the Synthesis of Phosphonyl
Pyrazoles, Synthetic Communications: An International Journal for Rapid Communication of
Synthetic Organic Chemistry, 29:22, 4025-4033, DOI: 10.1080/00397919908085923
To link to this article: http://dx.doi.org/10.1080/00397919908085923
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