Assembly of Complex 1,4‐Cycloheptadienes by (4+3) Cycloaddition of Rhodium(II) and Gold(I) Non‐Acceptor Carbenes
作者:Helena Armengol‐Relats、Mauro Mato、Antonio M. Echavarren
DOI:10.1002/anie.202012092
日期:2021.1.25
The formal (4+3) cycloaddition of 1,3‐dienes with Rh(II) and Au(I) non‐acceptor vinyl carbenes, generated from vinylcycloheptatrienes or alkoxyenynes, respectively, leads to 1,4‐cycloheptadienes featuring complex and diverse substitution patterns, including natural dyctiopterene C′ and a hydroxylated derivative of carota‐1,4‐diene. A complete mechanistic picture is presented, in which Au(I) and Rh(II)
This report showcases the stereospecific and modular synthesis of vinyl cyclopropanes in less than 30 min at room temperature, employing air-stable dinuclear PdI catalysis.