Stereospecific Decarboxylative Nazarov Cyclization Mediated by Carbon Dioxide for the Preparation of Highly Substituted 2-Cyclopentenones
作者:Keiichi Komatsuki、Yuta Sadamitsu、Kohei Sekine、Kodai Saito、Tohru Yamada
DOI:10.1002/anie.201705909
日期:2017.9.11
Highly substituted 2‐cyclopentenones were stereospecifically and regioselectively constructed with high catalytic efficiency through Lewis‐acid catalyzed decarboxylative Nazarov cyclization of the cyclic carbonate derivative, which is prepared by reacting the propargyl alcohol with carbon dioxide in the presence of a silver catalyst. The stereochemistry of the 2‐cyclopentenone is strictly controlled
通过路易斯酸催化的环状碳酸酯衍生物的脱羧纳扎罗夫环化反应,以高催化效率立体选择性和区域选择性地构建了高度取代的2-环戊烯酮,环状碳酸酯衍生物是通过使炔丙基醇与二氧化碳在银催化剂存在下反应制备的。2-环戊烯酮的立体化学严格受起始材料中烯烃的几何形状控制。该方法适用于各种基板。