SEARCH Articles Figures Tables Homer Homer reaction Homer-Emmons Wittig reaction Homer-Emmons modification Wittig reaction Homer-Wittig reaction enol ether preparation Intramolecular Homer—Wittig reaction Intramolecular reaction Wittig-Homer cyclization Wittig and Homer - Wadsworth - Emmons Reactions Wittig reaction Homer-Wadsworth-Emmons Wittig-Homer reaction Subject Wittig-Homer reaction enantioselective Wittig-Homer reactions Knoevenagel reaction Wittig-Homer reactions selectivity Wittig-Homer-Emmons reaction retinoid synthesis