A simple and green synthetic method for preparation of functionalized indol-3-yl pyran derivatives was developed. The reactions were carried out by one-pot three-component synthesis of 3-cyanoacetyl indoles, malononitrile/cyanoacetate and various aldehydes/isatins/acenaphthenequinone in the presence of catalytic amount of l-proline. The advantages of this method included straightforward processing
开发了一种简单而绿色的合成方法,用于制备功能化的
吲哚-3-基
吡喃衍
生物。反应是在催化量的1-脯
氨酸存在下,通过一锅三组分合成3-
氰基乙酰基
吲哚,
丙二腈/
氰基
乙酸酯和各种醛/
靛红/ ac烯醌来进行的。该方法的优点包括直接处理,优异的产量,广泛的基材范围和环境友好性。