SEARCH Articles Figures Tables Acylations heteroatom-stabilized carbanions Carbanions allylic heteroatom-stabilized Carbanions heteroatom-stabilized species Heteroatom Carbanions Heteroatom stabilization Heteroatom-stabilized Heteroatom-stabilized carbanion Heteroatom-stabilized carbanion Heteroatom-stabilized carbanion species Stabilized carbanion