Gold-Catalyzed Formal Cycloaddition of 2-Ethynylbenzyl Ethers with Organic Oxides and α-Diazoesters
作者:Samir Kundlik Pawar、Chiou-Dong Wang、Sabyasachi Bhunia、Appaso Mahadev Jadhav、Rai-Shung Liu
DOI:10.1002/anie.201303016
日期:2013.7.15
A world of possibilities: Gold‐catalyzed reactions of 2‐ethynylbenzyl ethers with organic oxides and α‐diazoesters gave 1,3‐dihydroisobenzofuran and naphthalene derivatives, respectively (see scheme; EWG=electron‐withdrawing group). Mechanisms for the formation of the formal cycloadducts were elucidated by isotope labeling.
可能性无限:2-乙炔基苄基醚与有机氧化物和α-重氮酯的金催化反应分别得到1,3-二氢异苯并呋喃和萘衍生物(参见方案; EWG =吸电子基团)。通过同位素标记阐明了形成正式环加合物的机理。