Hybrids of sugars and aromatics: A Pd-catalyzed modular approach to chromans and isochromans
作者:Markus Leibeling、Dennis C. Koester、Martin Pawliczek、Daniel Kratzert、Birger Dittrich、Daniel B. Werz
DOI:10.1016/j.bmc.2010.03.004
日期:2010.6.1
of our synthetic approach is the annelation of the benzene moiety via a highly efficient Pd-catalyzed domino reaction. This powerful approach led to a small library of highly substituted chromans and isochromans by making use of a variety of different diynes and bromoglycals. We investigated several Pd-catalysts in order to improve the yields and to enlarge the scope of the domino reaction. Furthermore