Rhodium-Catalyzed Intermolecular [2+2+2] Cross-Trimerization of Aryl Ethynyl Ethers and Carbonyl Compounds To Produce Dienyl Esters
作者:Yuta Miyauchi、Masayuki Kobayashi、Ken Tanaka
DOI:10.1002/anie.201105519
日期:2011.11.11
thinking: A cationic rhodium(I)/H8‐binap complex catalyzes the chemo‐, regio‐, and stereoselective completely intermolecular [2+2+2] cross‐trimerization of two aryl ethynyl ethers with both electron‐deficient and electron‐rich carbonylcompounds (see scheme; cod=1,5‐cyclooctadiene). This reaction proceeded at room temperature to give aryloxy‐substituted dienyl esters in good yields.
积极思考:阳离子铑(I)/ H 8联键配合物催化两种带有电子缺陷和电子缺陷的芳基乙炔基醚的化学,区域和立体选择性完全分子间[2 + 2 + 2]交叉三聚。富含羰基的化合物(参见方案; cod = 1,5-环辛二烯)。该反应在室温下进行,以良好的收率得到芳氧基取代的二烯基酯。