Novel phosphate anthelmintics. 3. Alkyl and aryl 1-methyleneallyl phosphates, phosphonates, and phosphinates
作者:Kurt Pilgram、D. Kendall Hass
DOI:10.1021/jm00246a007
日期:1975.12
chlorinated 1-methyleneallyl ("butadienyl") dialkyl phosphates and related phosphonates and phosphinates has been synthesized and assessed for anthelmintic activity in mice against the tapeworm Hymenolepis nana and the pinworm Syphacia obvelata. Highest activity was observed with diethyl 2,3,3-trichloro-1-dichloromethyleneallyl ("perchlorobutadienyl") phosphate (14), while replacement of both ethoxy groups
1,1-bis(3,5-dimethyl-1-pyrazolyl)- and 1-Amino-1-(3,5-dimethyl-1-pyrazolyl)-4,4-dichloro-1-buten-3-ones
作者:V. I. Potkin、S. K. Petkevich、R. V. Kaberdin、P. V. Kurman
DOI:10.1007/s11178-005-0051-z
日期:2004.10
Reaction of 1,1,4,4-tetrachloro-3-buten-2-one with 3,5-dimethylpyrazole gave 1,1-dichloro- 4,4-bis-(3,5-dimethyl-1-pyrazolyl)-3-buten-2-one. Treatment of the latter with amines resulted in replacement of one pyrazole ring by the amine residue with formation of the corresponding 4-amino-1,1-dichloro-4-(3,5- dimethyl-1-pyrazolyl)-3-buten-2-ones.