An alkyltin-free radical methodology carried out under minimal solvent conditions is presented. This free radical addition process allows for the preparation of a variety of substrates, including substituted chromones and coumarins. This method is high yielding, conducted at ambient temperature and, in nearly all instances, classical purification techniques such as chromatography are not needed.
本文介绍了一种在极少溶剂条件下进行的、不含烷基
锡的自由基方法学。这种自由基加成过程使得制备多种底物成为可能,包括取代
色酮和
香豆素。该方法产率高,在常温下操作,并且在几乎所有情况下,传统的纯化技术(如色谱法)都不需要使用。