Intermolecular Twofold Carbopalladation/Cyclization Sequence to Access Chromans and Isochromans from Carbohydrates
作者:Markus Leibeling、Bastian Milde、Daniel Kratzert、Dietmar Stalke、Daniel B. Werz
DOI:10.1002/chem.201101917
日期:2011.8.29
Fuse it! An intermolecular Pd‐catalyzed domino process leading to chromans and isochromans is reported (see scheme). A bromoglycal derived from monosaccharides and two alkyne units set the stage for the benzene annelation.