A concise synthesis of 10-benzoyl-3,4-dihydroanthracen-1(2<i>H</i>)-one derivatives catalyzed by TfOH under metal-free conditions
作者:Hao Wu、Hua-Dong Chen、Jian-Quan Liu、Qiu-Yan Li、Xiang-Shan Wang
DOI:10.1080/00397911.2021.1912355
日期:2021.6.18
Abstract TfOH was proved to be an efficient catalyst to promote the intra-molecular cyclization, Diels-Alder reaction, deprotonation and dehydration, and provided a concise synthesis of 10-benzoyl-3,4-dihydroanthracen-1(2H)-ones in good yields from a reaction of 2-(phenylethynyl) benzaldehyde and cyclohexane-1,3-dione. It underwent in high regioselectivity when center asymmetrical 4,4-dimethylcyclohexane-1
摘要 事实证明,TfOH是促进分子内环化,Diels-Alder反应,去质子化和脱水的有效催化剂,并且可以很好地合成10-苯甲酰基-3,4-二氢蒽-1(2 H)-由2-(苯基乙炔基)苯甲醛与环己烷-1,3-二酮的反应得到产物。当使用中心不对称的4,4-二甲基环己烷-1,3-二酮作为反应物时,它具有很高的区域选择性。