Metal Catalyst-Free Substitution of Allylic and Propargylic Phosphates with Diarylmethyl Anions

Substitution of secondary allylic phosphates with the anions derived from Ar2CH2 with BuLi or LDA proceeded regioselectively and stereoselectively without a metal catalyst, affording inversion products in good yield. Similarly, propargylic phosphates gave propargylic products selectively.