1095-04-1Relevant articles and documents
Isotope Effects on 31P Nuclear Shielding in Thiophosphites
Demarcq, Michel C.,Gleut, Louis Le,Hemelryck, Bruno G. Van
, p. 231 - 237 (1991)
The 34S isotope effect on the chemical shift of PIII nuclei in P(SR)3 esters is close to 20.6 ppb per PIII-34S bond, i.e. 3-4 times larger than for thiolo sulphur atoms in S=P(SR)3.A similar behaviour is noted for the P(-S-)3 sites in P4S9 and P4S3 and for the downfield triplet of P4S8, which, accordingly, is assigned to the tri-coordinate P atoms of this sulphide. 13C isotope effects are also reported for trialkyl(aryl) phosphorotrithioites and S,S,S-phosphorotrithioates.
Synthesis, structure, and reactivity of a stabilized phosphiranylium salt
Jansen, Helen,Laeng, Florian B.,Slootweg,Ehlers, Andreas W.,Lutz, Martin,Lammertsma, Koop,Gruetzmacher, Hansjoerg
supporting information; experimental part, p. 5485 - 5488 (2010/09/15)
Chargedl Combining MeBABAR-Phos and methyl triflate affords an amino-stabilized phosphiranylium ion (see picture; C. gray, N blue, P orange), which undergoes various nucleophilic addition reactions to give P-substituted phosphiranes and an N-heterocyclic carbene stabilized phosphiranylium cation. (Figure Presented)
Syntheses und NMR-Spektren phosphororganischer Antioxidantien und verwandter Verbindungen
Koenig, T.,Habicher, W.D.,Haehner, U.,Pionteck, J.,Rueger, C.,Schwetlick, K.
, p. 333 - 349 (2007/10/02)
The syntheses of various aliphatic, aromatic, sterically hindered, and cyclic organophosphorus compounds (phosphorous acid esters, esters chlorides and ester amides, hydrogen phosphites, phosphinates and phosphates) are reported, and general procedures for preparation are given.The compounds synthesized were investigated by means of 31P-, 1H- and 13C-n.m.r. spectroscopy, and the chemical shifts measured are listed.