Gold-Catalyzed Formal [3 + 3] and [4 + 2] Cycloaddition Reactions of Nitrosobenzenes with Alkenylgold Carbenoids
作者:Vinayak Vishnu Pagar、Appaso Mahadev Jadhav、Rai-Shung Liu
DOI:10.1021/ja209980d
日期:2011.12.28
We report two new formal cycloaddition reactions between nitrosobenzenes and alkenylgold carbenoids. We obtained quinoline oxides 3 in satisfactory yields from the gold-catalyzed [3 + 3]-cycloadditions between nitrosobenzenes and alkenyldiazo esters 1. For propargyl esters 5, its resulting gold carbenes react with nitrosobenzene to give alkenylimine 8, followed by a [4 + 2]-cycloaddition with nitrosobenzene
我们报告了亚硝基苯和链烯基金类卡宾之间的两种新的正式环加成反应。我们从亚硝基苯和烯基重氮酯 1 之间的金催化 [3 + 3]-环加成反应中以令人满意的收率获得了喹啉氧化物 3。对于炔丙酯 5,其产生的金卡宾与亚硝基苯反应得到烯亚胺 8,然后是 [4 + 2]-与亚硝基苯的环加成。