Cationic Rh(I)/Modified-BINAP-Catalyzed Reactions of Carbonyl Compounds with 1,6-Diynes Leading to Dienones and Ortho-Functionalized Aryl Ketones
作者:Ken Tanaka、Yousuke Otake、Azusa Wada、Keiichi Noguchi、Masao Hirano
DOI:10.1021/ol0707721
日期:2007.5.1
rhodium(I)/H8-BINAP complex catalyzes a [2 + 2 + 2] cycloaddition of both activated and unactivated carbonyl compounds with 1,6-diynes leading to dienones in high yields. On the other hand, unactivated aryl ketones react with 1,6-diynes in the presence of a cationic rhodium(I)/Segphos complex to give ortho-functionalized aryl ketones in high yields.
我们已经确定,阳离子铑(I)/ H8-BINAP络合物催化活化和未活化的羰基化合物与1,6-二炔的[2 + 2 + 2]环加成反应,从而高产率地生成二烯酮。另一方面,未活化的芳基酮在阳离子铑(I)/ Segphos络合物的存在下与1,6-二炔反应,从而以高收率得到邻位官能化的芳基酮。