- Vinyltriphenylphosphonium salt mediated serendipitous synthesis of aryliminophosphoranes
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Crystalline phosphorus ylides are obtained in excellent yields from the 1:1:1 addition reaction between triphenylphosphine, dimethyl acetylenedicarboxylate and aromatic amines, such as aniline, 1-naphthylamine, p-toluidine, 4-bromoaniline, 4-nitroaniline, 4-acetylaniline, 2-aminopyridine, or 2-amino-5-bromopyridine. These stabilized phosphoranes undergo a smooth intramolecular reaction in boiling p-xylene or toluene to produce aryliminophosphoranes in excellent yields.
- Yavari, Issa,Adib, Mehdi,Hojabri, Leila
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- Reaction between triphenylphosphine and aromatic amines in the presence of diethyl azodicarboxylate: An efficient synthesis of aryliminophosphoranes under neutral and mild conditions
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An efficient synthesis of aryliminophosphoranes is described. A mixture of an aromatic amine, diethyl azodicarboxylate and triphenylphosphine undergo a Mitsonobu type reaction at ambient temperature in dry dichloromethane to afford aryliminophosphoranes in excellent yields.
- Adib, Mehdi,Sheikhi, Ehsan,Deljoush, Azadeh
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experimental part
p. 4137 - 4140
(2011/06/24)
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- Synthesis and structures of substituted triphen-yl(phenyl-imino)phospho- ranes
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Three substituted triphen-yl(phenyl-imino)phospho-ranes, namely (4-cyano-phenyl-imino)triphenyl-phospho-rane, C25H19N 2P, (I), (4-nitro-phenyl-imino)triphenyl-phospho-rane, C 24H19N2O2P, (II), and (3-nitro-phenyl-imino)triphenyl-phospho-rane, C24H19N 2O2P, (III), were synthesized as precursors for the preparation of substituted diphenyl-carbodiimides. All three compounds display a supramolecular arrangement in which the substituted benzene rings are organized in an antiparallel fashion. The nitro group on the ring participates in C - H...O and O...π inter-actions, forming inter-molecular dimers. Compound (III) shows disorder which involves the rotation of one of the phenyl rings of the triphenyl-phosphine group.
- De Borger, Roeland,Collas, Alain,Dommisse, Roger,Blockhuys, Frank
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experimental part
p. o50-o54
(2010/06/15)
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- Complexes of N-aryltriphenylphosphinimines with mercury(II) halides
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The synthesis IR and 31P NMR spectra of the complexes of various N-aryltriphenylphosphinimines with some mercury dihalides as well as the corresponding phosphonium salts are reported It is shown by an X-ray crystal structure analysis of the complex of the unsubstituted phosphinimine with HgCl2 that in the solid state these complexes form dimers via two Hg...μ2 Cl...Hg bridges.
- Braun, Thomas P.,Gutsch, Paul A.,Zimmer, Hans
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p. 858 - 862
(2007/10/03)
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