INVERSION DE POLARITE a4 DES CETONES α-ALLENIQUES PAR LE GROUPE TRIPHENYLPHOSPHONIO

Article abstract of DOI:10.1016/S0040-4039(00)87160-9

The a⁴ umpolung of α-allenic ketones is performed using the triphenylphosphonio group.It results in inducing an electrophilic character at the carbon γ to the carbonyl function and in changing the regioselectivity of the additions of active hyd