An efficient and robust methodology based on electrochemical techniques for the direct synthesis of aromatic lactones through dehydrogenative C−O cyclization is described. This new and useful electrochemical reaction can tolerate a variety of functional groups, and is scalable to 100 g under mild conditions. Remarkably, heterocycle‐containing substrates can be employed, thus expanding the scope of
Mild ArI-Catalyzed C(sp<sup>2</sup>)H or C(sp<sup>3</sup>)H Functionalization/CO Formation: An Intriguing Catalyst-Controlled Selectivity Switch
作者:Xueqiang Wang、Joan Gallardo-Donaire、Ruben Martin
DOI:10.1002/anie.201407011
日期:2014.10.6
A tandem C(sp2)H and C(sp3)Hfunctionalization/CO bond formation catalyzed by iodine(III) reagents generated in situ has been developed. The method shows wide scope under mild conditions and exhibits an unprecedented selectivity profile that can be switched depending on the catalyst employed.
C(SP A串联2) H和C(SP 3) ħ官能/ C 由碘催化O键形成原位产生(III)的试剂已经被开发出来。该方法在温和条件下显示范围广,并且显示出前所未有的选择性曲线,可以根据所用催化剂进行切换。