Rh(III)-Catalyzed C–H Activation/Cyclization of Benzamides and Diazonaphthalen-2(1<i>H</i>)-ones for Synthesis of Lactones
作者:Renjie Chen、Sunliang Cui
DOI:10.1021/acs.orglett.7b01728
日期:2017.8.4
A Rh(III)-catalyzed C–H activation/cyclization of benzamides and diazonaphthalen-2(1H)-ones for synthesis of lactones has been developed. In the presence of Rh(III) catalysis, the benzamides would form rhodacycle species and could be trapped by diazonaphthalen-2(1H)-ones for arylation, and the following intramolecular lactonization would rapidly furnish the products. Thus, the diazonaphthalen-2(1H)-ones
已开发了Rh(III)催化苯甲酰胺和diazonaphthalen-2(1 H)-ones合成内酯的C–H活化/环化反应。在Rh(III)催化下,苯甲酰胺会形成rhodacycle物种,并可能被diazonaphthalen-2(1 H)-ones进行芳构化,并且随后的分子内内酯化作用将迅速提供该产物。因此,在Rh(III)催化中,首先发现重氮萘-2(1 H)-1是内酯化组分,同时进行了动力学同位素效应研究并提出了合理的反应机理。