The invention relates to a diastereoselective process for the preparation of olefins by the Horner-Wadsworth-Emmons reaction which consists in reacting a specific phosphonate improve the diastereoselectivity at all temperatures including at ambient temperature, with a carbonyl derivative in the presence of a base in an appropriate solvent.
该发明涉及一种通过Horner-Wadsworth-Emmons反应进行立体异构选择性制备烯烃的方法,其包括在适当的溶剂中,在碱的存在下,将特定的
膦酸酯与羰基衍
生物反应,以提高立体异构选择性,包括在室温下的所有温度。