%0 Journal Article %T Microwave-assisted three-component domino reaction: Synthesis of indolodiazepinotriazoles %A Rajesh K. Arigela %A Sudhir K. Sharma %A Brijesh Kumar %A Bijoy Kundu %J Beilstein Journal of Organic Chemistry %D 2013 %I %R 10.3762/bjoc.9.41 %X A microwave-assisted three-component protocol involving N-1 alkylation of 2-alkynylindoles with epichlorohydrin, ring opening of the epoxide with sodium azide, and an intramolecular Huisgen azide¨Cinternal alkyne 1,3-dipolar cycloaddition domino sequence has been described. The efficacy of the methodology has been demonstrated by treating various 2-alkynylindoles (aromatic/aliphatic) with epichlorohydrin and sodium azide furnishing annulated tetracyclic indolodiazepinotriazoles in satisfactory yields. %K 2-alkynylindoles %K azides %K 1 %K 3-dipolar cycloaddition %K domino reaction %K indolodiazepinotriazoles %U http://dx.doi.org/10.3762/bjoc.9.41