Author/Authors :
Fruchart، نويسنده , , Jean-Sébastien and Gras-Masse، نويسنده , , Hélène and Melnyk، نويسنده , , Oleg، نويسنده ,
Abstract :
NMR studies revealed that methyl phenylacetate enolate generated with the P4-tBu phosphazene base was ‘naked’ or tightly associated with P4-tBuH+ cation depending on very small variations in solvent composition. Both forms reacted more rapidly than the corresponding lithium enolate in a model alkylation experiment using dimethyl sulfate.
