Rhodium-Catalyzed One-Pot Intermolecular [2 + 2 + 2] Trimerization/Asymmetric Intramolecular [4 + 2] Cycloaddition of Two Aryl Ethynyl Ethers and 5-Alkynals
作者:Yuta Miyauchi、Keiichi Noguchi、Ken Tanaka
DOI:10.1021/ol3027158
日期:2012.12.7
It has been established that a cationic Rh(I)/(R)-H8-BINAP complex catalyzes the one-pot intermolecular [2 + 2 + 2] trimerization/asymmetric intramolecular [4 + 2] cycloaddition of two aryl ethynyl ethers and 5-alkynals to produce annulated 1,4-cyclohexadienes possessing two stereogenic centers.
现已确定,阳离子Rh(I)/(R)-H 8 -BINAP络合物催化两个芳基乙炔基醚的单锅分子间[2 + 2 + 2]三聚/不对称分子内[4 + 2]环加成反应。 5-炔基产生具有两个立构中心的环状1,4-环己二烯。