SIMPLE ACCESS TO ALPHA-FUNCTIONAL PHOSPHOLIDE IONS - 2 - APPLICATION TO THE SYNTHESIS OF 1-METHYL-2-PYRROLYL AND 2-(DIPHENYLPHOSPHINO)PHENYL DERIVATIVES
S. Holand et al., SIMPLE ACCESS TO ALPHA-FUNCTIONAL PHOSPHOLIDE IONS - 2 - APPLICATION TO THE SYNTHESIS OF 1-METHYL-2-PYRROLYL AND 2-(DIPHENYLPHOSPHINO)PHENYL DERIVATIVES, Organometallics, 17(14), 1998, pp. 2996-2999
Heating 1-Z-3,4-dimethylphospholes with potassium tert-butoxide in THF
at ca. 150-160 degrees C affords the corresponding potassium 2-Z-3,4-
dimethylphospholides (Z = 1-methyl-2-pyrrolyl and 2-(diphenylphosphino
)phenyl) via a [1,5]-sigmatropic shift of Z. The first anion can be us
ed to prepare the corresponding bis(pyrrolyl)-1,1'-diphosphaferrocene,
and the second anion is able to chelate palladium(II) between its pho
spholide and PPh2 functionalities.