A general and efficient reduction of acyl chlorides to aldehydes by Sm(0)/Bu3P

Palladium hydroxide catalyzed isomerization of primary allylic alcohols to aldehydes: application to the formal synthesis of (-)-brevisamide

The Pd-catalyzed isomerization of primary allylic alcohols into the corresponding saturated aldehydes has been achieved at room temperature for the first time in good to excellent yields under mild conditions. The functional group compatibility in this reaction is studied, and this new methodology has been successfully applied in the synthesis of a C5-C13 tetrahydropyran ring system of (-)-brevisamide in seven steps.

P-Acylphosphonium salts and their vinyloges — application in synthesis

Review with 101 refs. of progress in synthetic applications and properties of P-acylphosphonium salts including acylation via P-acylphosphonium salts, enantioselective acylation using chiral phosphine ligands, nucleophilic (β)-oniovinylation, and reaction involving vinyloges of P-acylphosphonium salts formed by treatment conjugated alkenoates or alkynoates with phosphines.