A variety of 3-chlorosalicylates were prepared by one-potcyclizations of the first reported 4-chloro-1,3-bis(trimethylsilyloxy)buta-1,3-dienes with various 1,3-dielectrophiles. These include cyclizations with 3-silyloxy-2-en-1-ones, 3-aryl-3-silyloxy-2-en-1-ones, 1-methoxy-1-en-3-ones, 1,1-bis(methylthio)-1-en-3-ones, 3-oxo orthoesters, 1,1,3,3-tetraethoxypropanes, 1,1-diacetylcyclopropane, and 3-formylchromones
通过首次报道的 4-
氯-1,3-双(三甲基甲
硅烷氧基)丁-1,3-二烯与各种 1,3-亲电试剂的单锅环化反应制备了多种
3-氯水杨酸酯。这些包括与 3-甲
硅烷氧基-2-烯-1-酮、3-芳基-3-甲
硅烷氧基-2-烯-1-酮、1-甲氧基-1-烯-3-酮、1,1-双(甲
硫基)-1-en-3-酮、3-氧代原酸酯、
1,1,3,3-四乙氧基丙烷、1,1-
二乙酰环丙烷和 3-甲酰基
色酮。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)