2,3-Dichloro-5,6-dicyano-<i>para</i>-benzoquinone (DDQ)/Methanesulfonic Acid (MsOH)-Mediated Intramolecular Arene-Alkene Oxidative Coupling
作者:Ko Hoon Kim、Cheol Hee Lim、Jin Woo Lim、Jae Nyoung Kim
DOI:10.1002/adsc.201301169
日期:2014.3.10
An efficient intramolecular arene‐alkene oxidative coupling of 1,4‐diaryl‐1,3‐butadienes has been developed involving the use of a 2,3‐dichloro‐5,6‐dicyano‐para‐benzoquinone (DDQ)/acid catalyst. The reaction involves the generation of a radical cation by abstraction of an electron from the substrate with DDQ, an intramolecular Friedel–Crafts‐type reaction, and the loss of hydrogen radical.
已经开发出一种有效的1,4-二芳基-1,3-丁二烯分子内芳烃-烯烃氧化偶联方法,其中涉及使用2,3-二氯-5,6-二氰基对对苯二酚(DDQ)/酸催化剂。该反应涉及通过用DDQ从底物中提取电子来产生自由基阳离子,分子内Friedel-Crafts型反应以及氢自由基的损失。