
%0 Journal Article
%A Black, DSC 
%A Craig, DC 
%A Debdas, RB 
%A Kumar, N 
%A Wright, TA 
%T Nitrones and Oxaziridines. LXVII. Intermolecular Cycloaddition of Fused Indolyl Nitrone Ring Systems
%J Australian Journal of Chemistry
%D 1993/11/01
%V 46
%N 11
%P 1725-1742
%K 
%R https://doi.org/10.1071/CH9931725
%U https://www.publish.csiro.au/paper/CH9931725 
%X The two dihydro-&#946;-carboline N-oxides (6) and (18) have been prepared by reductive cyclization of 2-acetyl-3-(&#946;- nitroethyl ) indoles. These cyclic nitrones undergo 1,3-dipolar cycloaddition to alkynes to give the cycloadducts (21)-(25). Thermal rearrangement of the adduct (22) gives the indolizino [8,7-b] indole (27) in high yield. The X-ray crystal structure determination of the adduct (24) is reported. 
