N-(diethoxyphosphinyl)acetamide;diethyl N-acetylphosphoramidate;Acetyl--amin;Diethylester von N-Acetylamidophosphorsaeure;Phosphorsaeure-diethylester-acetamid;O.O-Diethyl-N-acetylamidophosphat;Diethyl acetylphosphoramidate;N-diethoxyphosphorylacetamide
The reaction of diethyl N-acetyl-N-methylphosphoramidate 1 with aldehyde in the presence of LDA at -70 degrees C results in the formation of the unstable oxyanion 6 which undergoes intramolecular rearrangement involving migration of a phosphoryl group from nitrogen to oxygen affording an amide anion 8, Subsequent proton transfer in 8 followed by elimination of phosphate anion provides the respective alpha,beta-unsaturated N-methylcarboxamide 4, The formation of considerable amounts of diethyl N-methylphosphoramidate 5 is also always observed.
a variety of phosmidosine analogues 1a−d replaced by longer alkyl groups in place of the methyl group on the phosphoramidate linkage were synthesized by reaction of alkyl N-(N-tritylprolyl)phosphorodiamidite derivatives 7a−d with an 8-oxoadenosine derivative 4 protected with acid-labile protecting groups. Consequently, the O-ethyl ester derivative 1b was found to be sufficiently stable in aqueous
Nikonorov, K. V.; Latypov, Z. Ya.; Antokhina, L. A., Journal of general chemistry of the USSR, 1982, vol. 52, # 11, p. 2341
作者:Nikonorov, K. V.、Latypov, Z. Ya.、Antokhina, L. A.
DOI:——
日期:——
NIKONOROV, K. V.;LATYPOV, Z. YA.;ANTOXINA, L. A., ZH. OBSHCH. XIMII, 1982, 52, N 11, 2645-2646
作者:NIKONOROV, K. V.、LATYPOV, Z. YA.、ANTOXINA, L. A.
DOI:——
日期:——
A NEW NITROGEN-TO-OXYGEN PHOSPHORYL MIGRATION
作者:A. Koziara、A. Zwierzak
DOI:10.1080/10426509908037018
日期:1999.1.1
The reaction of diethyl N-acetyl-N-methylphosphoramidate 1 with aldehyde in the presence of LDA at -70 degrees C results in the formation of the unstable oxyanion 6 which undergoes intramolecular rearrangement involving migration of a phosphoryl group from nitrogen to oxygen affording an amide anion 8, Subsequent proton transfer in 8 followed by elimination of phosphate anion provides the respective alpha,beta-unsaturated N-methylcarboxamide 4, The formation of considerable amounts of diethyl N-methylphosphoramidate 5 is also always observed.