A new synthesis of .alpha.-phosphinoyl cycloalkanones by phosphinylation of cycloalkanone enolates. Crystal and molecular structure of 2-(diphenylphosphinoyl)-3-[tris(methylthio)methyl]cyclopentanone and 2-(diphenylphosphinoyl)-3-carbomethoxycyclopentanone
phosphinoyl chloride 1a or chlorophosphates 1b leads to the synthesis of phosphane oxides 3aa–ag and phosphonates 3bb, be in good to high yield. The reaction can be extended to cerium enolates 4 (of ketones) and 6 (of nitriles) except when a benzyl group bound to the carbonyl moiety should be metallated. The latter reaction is the first reported synthesis of β-oxophosphane oxides by a simple reaction between
Abstract In recent years β-phosphoryl ketones were considered as valuable intermediates in organic synthesis. In the present work we studied the reaction of enamines 1 with monochlorophosphine 2 which led to the β-phosphinoyl cycloalkanones 3. The structure of products 3 was confirmed by NMR and IR spectroscopy.
New type of 2-alkyl-substituted 1,8-naphthyridine systems containing a phosphoryl group in the side chain
作者:P. S. Lemport、G. V. Bodrin、M. P. Pasechnik、A. G. Matveeva、P. V. Petrovskii、A. V. Vologzhanina、E. E. Nifant’ev
DOI:10.1007/s11172-007-0293-8
日期:2007.9
First organophosphorus derivatives of 2-alkyl-and 2,3-alkylene-substituted 1,8-naphthyridines were synthesized by the Friedländer reaction starting from 2-aminonicotinaldehyde and diphenylphosphoryl(cyclo)alkanones, respectively.
A new synthesis of .alpha.-phosphinoyl cycloalkanones by phosphinylation of cycloalkanone enolates. Crystal and molecular structure of 2-(diphenylphosphinoyl)-3-[tris(methylthio)methyl]cyclopentanone and 2-(diphenylphosphinoyl)-3-carbomethoxycyclopentanone
作者:Marian Mikolajczyk、Piotr Kielbasinski、Michal W. Wieczorek、Jaroslaw Blaszczyk、Alfred Kolbe