作者:Simon J. Teague、Gregory P. Roth
DOI:10.1055/s-1986-31667
日期:——
Condensation of the α-lithio derivative of 3-substituted 4,4-dialkoxybutanoates, butanenitriles, and butanamides with methoxy-activated aromatic aldehydes, followed by treatment with refluxing dilute sulfuric acid gives rise to substituted naphthalene products. In this manner, 2,6,7-tri- and 2,3,6,7-tetrasubstituted naphthalenes are synthesized in high yields on a multigrarn scale.
将 3-取代的 4,4-二烷氧基丁酸酯、丁烯腈和丁酰胺的 δ-硫代衍生物与甲氧基活化的芳香醛缩合,然后用回流的稀硫酸处理,可得到取代的萘产品。通过这种方法,可以在多栅规模上高产率合成 2,6,7 三取代萘和 2,3,6,7 四取代萘。