Efficient and Facile Synthesis of 3-Amino-1-aryl-9<i>H</i>-fluorene-2,4-dicarbonitrile Under Solvent-Free Conditions
作者:Liangce Rong、Hongxia Han、Hong Jiang、Shujiang Tu
DOI:10.1080/00397910902779298
日期:2009.9.8
A versatile and efficient route to 3-amino-1-aryl-9H-fluorene-2,4-dicarbonitrile via multicomponent reactions of 1-indanone, aromatic aldehydes, and malononitrile under solvent-free conditions using NaOH as the catalyst is described. This method provides several advantages over alternative procedures such as mild, solvent-free conditions at ambient temperature and direct isolation of the products in good yields.
An improved and clean procedure for the synthesis of one-donor poly-acceptors systems containing 2,6-dicyanoamine moiety in aqueous media catalyzed by TEBAC in the presence and absence of K2CO3
作者:Xiang-Shan Wang、Mei-Mei Zhang、Qing Li、Chang-Sheng Yao、Shu-Jiang Tu
DOI:10.1016/j.tet.2007.03.154
日期:2007.6
A clean and simple synthesis of one-donor poly-acceptors systems containing 2,6-dicyanoamine moiety was accomplished via the reaction of 1-arylethylidenemalonodinitriles with arylidenemalonodinitriles in aqueousmediacatalyzed by TEBAC in the presence of K2CO3. The important intermediates were obtained successfully to confirm the mechanism in the absence of base under the same reaction conditions
在K 2 CO 3的存在下,TEBAC催化的水介质中1-芳基亚乙基丙二腈与芳基丙二腈的反应可以完成含有2,6-二氰胺部分的单供体多受体体系的清洁,简单合成。在相同的反应条件下,成功地获得了重要的中间体,从而证实了在不存在碱的情况下的机理。X射线衍射研究证实了3m和4b的结构。