A series of novel benzoin esters has been obtained in high yield, in a site selective synthesis, by the acid hydrolysis of a series of 4-benzoyloxy-2-azabuta-1, 3-dienes. The oxidation of the benzoin esters allows the preparation of symmetrically and unsymmetrically substituted benzils by a route that is superior, in some cases, to those previously reported.
通过酸
水解一系列4-苯甲氧基-2-氮杂丁-1,3-二烯,获得了一系列新的苯醇酯,产率较高,且具有位选择性合成。苯醇酯的氧化可制备对称和不对称取代的苯骈酮,这一方法在某些情况下优于以前报道的方法。