New Approach to the Synthesis of Phosphorodichloridites, Phosphorochloridites, and Trialkyl Phosphites
作者:Piotr Majewski
DOI:10.1080/10426500902719222
日期:2009.4.7
Different trivalent organophosphorus esters such as phosphorodichloridites, phosphorochloridites, and mixedtrialkylphosphites have been easily synthesized in good yields using a HCl-catalyzed reaction of the corresponding chlorophosphine and alkoxytrimethylsilane by mutual exchange of the alkoxy and chlorine ligand (P III Cl/ROSiR′ 3 ; exchange reaction). Chemoselectivity of the exchange reaction
Nucleophilic displacement routes to P-chiral phosphines; The introduction of sterically encumbered groups
作者:John M. Brown、J. Christopher P. Laing
DOI:10.1016/s0022-328x(96)06660-0
日期:1997.2
conditions brought about by the steric demands of the 2-adamantyl residue. Similar difficulties were experienced when following the P-borane route of Jugé and Genet, where the 2-adamantyl group was introduced in the initial step. More success was achieved by the borane route when the bulky residue was introduced last by reaction of RLi with the phosphinite complex 13. In this way the ferrocenyl, 1-adamantyl
Stereoselective phosphonylation of aldehydes via chiral phosphordiamaidites. A potentially versatile asymmetric route to organophosphorus biomolecules
作者:Vivienne Sum、Terence P. Kee、Mark Thornton-Pett
DOI:10.1039/c39940000743
日期:——
The novel, chiral phosphordiamidite, N,O-(1R,2S)-MeNCHMeCHPhO}PN(SiMe3)2 containing deprotonated ephidrine has been shown to phosphonylate aldehydes readily to afford α-functionalised phosphonate esters with diasteroselectivities upto ca. 96%.
The invention relates to novel phosphorus compounds, to a method for producing said phosphorus compounds and their intermediate products. The invention also relates to the catalysts produced according to the invention on the basis of the phosphorus compounds and to their use in catalytic processes, especially in asymmetric catalytic processes.