Synthesis and some heterocyclization reactions of new diethyl (1,1-difluoro-3,3-dicyano-2-trifluoromethylallyl)phosphonate and ethyl 3,3-dicyano-2-[(diethoxyphosphoryl)difluoromethyl]acrylate
作者:Pavel V. Pasternak、Boris B. Averkiev、Michail Yu. Antipin、Alexander S. Peregudov、Nikolai D. Chkanikov
DOI:10.1016/j.jfluchem.2004.06.008
日期:2004.12
3-dicyano-2-trifluoromethylallyl)phosphonate, has been synthesized from diethoxyphosphoryl pentafluoroacetone 1. A similar phosphoryl analogue of ethyl 3,3-dicyano-2-trifluoromethylacrylate, ethyl 3,3-dicyano-2-[(diethoxyphosphoryl)difluoromethyl]acrylate, has been obtained from ethyl 3-(diethoxyphosphoryl)-3,3-difluoro-2-oxopropionate 2. By heterocyclization of these new ethylenes with 3-methyl-2-pyrazoline-5-ones
1,1-双(三氟甲基)-2,2-二氰基乙烯(X = P(O)(OEt)2),二乙基(1,1-二氟-3,3-二氰基-2)的新CF 2 X-类似物-三氟甲基烯丙基)膦酸酯是由二乙氧基磷酰基五氟丙酮1合成的。3,3-二氰基-2-三氟甲基丙烯酸乙酯的类似的磷酰基类似物,3,3-二氰基-2-[((二乙氧基磷酰基)二氟甲基]丙烯酸乙酯)是从3-(二乙氧基磷酰基)-3,3-二氟-乙基得到的。 2-氧代丙酸酯2。通过将这些新乙烯与3-甲基-2-吡唑啉-5-酮,3(5)-氨基吡唑,二甲酮,2-氨基吡啶,1-芳基-3-甲基-5-氨基吡唑,1,3,3-杂环化1,3-二氢吡喃并[2,3-c]吡唑,4,5-二氢吡唑并[1,5-a]嘧啶,5,6, 7,8-四氢-4H-色烯,2H-吡啶并[1,2-a]嘧啶,4,7-二氢-1H-吡唑并[3,4-b]吡啶,1,4-二氢吡啶,4,5,一次获得了6,7-四氢-1H- [1]吡啶,1