Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
Org Biomol Chem. 2009 Oct 21;7(20):4248-51. doi: 10.1039/b905556h. Epub 2009 Aug 11.
4-Acyl-1-hydroxy-2,3-benzodioates were regioselectively prepared by chelation-controlled [3+3] cyclization of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with 3-acyl-4-ethoxy-2-oxo-3-enoates.
4-酰基-1-羟基-2,3-苯并二氧代物通过 1,3-双(三甲基甲硅氧基)-1,3-丁二烯与 3-酰基-4-乙氧基-2-氧代-3-烯酸酯的螯合控制[3+3]环化反应,以区域选择性方式制备。