%0 Generic %A Siyang, Hai Xiao %A Ji, Xiao Yue %A Wu, Xu Rui %A Wu, Xin Yan %A Liu, Pei Nian %D 2015 %T Lewis Acid Catalyzed Tandem Polycyclization of Internal Alkynols and Vinyl Azides %U https://acs.figshare.com/articles/dataset/Lewis_Acid_Catalyzed_Tandem_Polycyclization_of_Internal_Alkynols_and_Vinyl_Azides/2112244 %R 10.1021/acs.orglett.5b02556.s002 %2 https://ndownloader.figshare.com/files/3745537 %K series %K polycyclic skeleton %K cycloaddition %K tandem polycyclization protocol %K scaffold %K Catalyzed Tandem Polycyclization %K tandem cyclization reaction %K alkynol %K vinyl azides %K Internal Alkynols %K Vinyl AzidesA novel Lewis acid %K yield %K cycloisomerization %K elimination process %K entry %K indeno %X A novel Lewis acid catalyzed tandem cyclization reaction of internal alkynols and vinyl azides has been achieved to afford a series of products containing a pyran-based indeno­[1,2-c]­isochromene scaffold in moderate to high yields. This tandem polycyclization protocol provides a straightforward entry to construct the complex polycyclic skeleton through cycloisomerization, formal [4 + 2] cycloaddition, and an elimination process. %I ACS Publications