[2,3]-Wittig rearrangement of enantiomerically enriched 3-substituted 1-propenyloxy-1-phenyl-2-propen-1-yl carbanions: Effect of heteroatoms and conjugating groups on planarization of an α-oxy-benzylcarbanion through a double bond
The effect of conjugating electron-withdrawing groups and α-anion-stabilizing heteroatom substituents on configurational stability of chiral carbanions through a double bond was examined on the basis of extent of chirality transfer in intramolecular trapp