Synthese von Phosphono�pfels�ureestern durch Reduktion von 3-Phosphonopyruvaten
摘要:
The reduction of 3-phosphonopyruvates with ammonia-borane complex proceeds with a very high diastereoselectivity (25:1). Syn- and anti-diastereoisomeric hydroxy esters could be unambiguously assigned by NMR spectroscopy. Furthermore, other beta-ketophosphonates could easily be reduced. Thus, diethyl-3,3-diethoxy-2-hydroxybutyl phosphonate was obtained which gave diethy-2-hydroxy-3-oxobutyl phosphonate after hydrolysis the first known phosphonoacyloine.
Synthesen von 2,3-Dioxoalkylphosphonaten und anderer neuartiger ?-Ketophosphonate sowie eines Phosphinopyruvamids ( = (Alkyloxyphosphinyl)pyruvamids)
作者:Richard Neidlein、Helmut Feistauer
DOI:10.1002/hlca.19960790329
日期:1996.5.8
Syntheses of 2,3-Dioxoalkylphonates and Other Novel β-Ketophosphonates As Well As of a Phosphinopyruvamide ( = (Alkyloxyphosphinyl)pyruvamide)
2,3-二氧代烷基膦酸酯和其他新型β-酮膦酸酯以及膦酰丙酮酰胺(=(烷氧基膦基)丙酮酰胺)的合成
Synthese von Phosphono�pfels�ureestern durch Reduktion von 3-Phosphonopyruvaten
作者:R. Neidlein、H. Feistauer
DOI:10.1007/bf00807637
日期:1997.1
The reduction of 3-phosphonopyruvates with ammonia-borane complex proceeds with a very high diastereoselectivity (25:1). Syn- and anti-diastereoisomeric hydroxy esters could be unambiguously assigned by NMR spectroscopy. Furthermore, other beta-ketophosphonates could easily be reduced. Thus, diethyl-3,3-diethoxy-2-hydroxybutyl phosphonate was obtained which gave diethy-2-hydroxy-3-oxobutyl phosphonate after hydrolysis the first known phosphonoacyloine.