作者:Saber Mirzaei、Denan Wang、Sergey V. Lindeman、Camille M. Sem、Rajendra Rathore
DOI:10.1021/acs.orglett.8b02937
日期:2018.10.19
toward the preparation of pillar[n]arenes (n = 5, 6) is reported, based upon a high solvent-dependent selectivity found in the condensation reaction between 1,4-dialkyloxybenzene and paraformaldehyde, involving methanesulfonic acid as catalyst. Pillar[6]arene (P6) is obtained as the major product when using chloroform as solvent, while in dichloromethane pillar[5]arene (P5) is the dominant product. Accordingly
朝向支柱的制备效率且高选择性合成方法[ Ñ ]芳烃(Ñ = 5,6)报道,基于高依赖性溶剂选择性的1,4-二dialkyloxybenzene和多聚甲醛之间的缩合反应中发现,涉及甲酸作为催化剂。当使用氯仿作为溶剂时,以[6]芳烃(P6)为主要产物,而在二氯甲烷中,[5]芳烃(P5)为主要产物。因此,已经以优异的产率选择性地合成了一系列P5和P6。