Synthesis of dibenzo[<i>a</i>,<i>d</i>]cycloheptanoids <i>via</i> aryne insertion into 2-arylidene-1,3-indandiones
作者:Nagaraju Payili、Santhosh Reddy Rekula、Anjaiah Aitha、V. V. S. R. N. Anji Karun Mutha、Challa Gangu Naidu、Satyanarayana Yennam
DOI:10.1039/c9ob01900f
日期:——
A novel and unexpected aryne insertion cascade reaction on 2-arylidene-1,3-indandiones via conjugate addition of fluoride followed by formal C-C insertion is developed to afford dibenzo[a,d]cycloheptanoid derivatives in good yields with a single isomer. This reaction represents a rare instance of cyclic enone C-C bond insertion (acyl-alkenylation) in aryne chemistry. Interestingly, 2-arylidene-1,3-indandiones