@article{335,
  author = {György Keglevich and R. Farkas and K. Ludányi and Veronika Kudar and M. Hanusz and K. Simon},
  title = {New P-ligands: The aromaticity and reactivity of 2,4,6-trialkylphenylphospholes},
  abstract = {A further member of 2,4,6-trialkylphenyl-phospholes, the ditertbutylmethylphenyl derivative (1c) was characterized by Bird index and by the sum of angles at the phosphorus atom to describe the flattening of the P-pyramid. Both numbers suggested a slight aromaticity. The reaction of arylphospholes with phosphorus tribromide was extended to phosphole 1c leading this occasion, after further steps, to the mixture of 3- and 2-substituted products (3c-1 and 3c-2, respectively). A triisopropylphenyl-2H-phosphole (4) formed by sigmatropic rearrangement was utilized in the preparation of new 1-phosphanorbornene derivatives, such as sulfide 6 and hemi-oxides 8-1 and 8-2. Further oxidation of the latter species (8-1 and 8-2) led to the decomposition of the dimeric structure (11). 4 could also be trapped by benzaldehyde to afford the oxaphosphanorbomene (10) as one diastereomer. Finally, the reversible formation of 2Hphosphole 4 from 1H-phosphole la at 150 degrees C was proved. (c) 2005 Wiley Periodicals, Inc. Heteroatom Chem.},
  year = {2005},
  journal = {HETEROATOM CHEMISTRY},
  volume = {16},
  number = {2},
  pages = {104–110},
  issn = {1042-7163},
}