Asymmetric Michael reaction: novel efficient access to chiral β-ketophosphonates
The asymmetric Michael reaction between chiral β-enaminophosphonates derived from (S)-1-phenylethylamine and various electrophilic alkenes furnished β,β-disubstituted ketophosphonates in good yields and with excellent enantioselectivity.
Delarue-Cochin, Sandrine,Pan, Jian-Jung,Dauteloup, Aurelie,Hendra, Frederic,Angoh, Roger Gagali,Joseph, Delphine,Stephens, Philip J.,Cave, Christian
p. 685 - 691
(2008/01/27)
An Efficient Synthesis of Dialkyl 2-Oxoalkanephosphonates and Diphenyl-2-oxoalkylphosphine Oxides from 1-Chloralkyl Ketones
The synthesis of dialkyl 2-oxoalkanephosphonates and diphenyl-2-oxoalkylphosphine oxides, via an Arbuzov reaction of trialkyl phosphites or ethoxydiphenylphosphine with methoxycarbonylhydrazono derivatives of 1-chloroalkyl ketones followed by carbonyl deprotection, is described.
Corbel, Bernard,Medinger, Luc,Haelters, Jean Pierre,Sturtz, Georges
p. 1048 - 1051
(2007/10/02)
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