75528-56-2Relevant articles and documents
Heterocyclic 12-?- and 14-?-Systems, 39. - Syntheses and Chemistry of New Indole Systems; Scope and Limitations
Neidlein, Richard,Moller, Franz
, p. 971 - 979 (2007/10/02)
1,2-dimethylindole (1) reacts in the presence of AlCl3 with malonyl dichloride to give the hydroxyazapseudophenalenone 2, with propiolactone to give the acid 3, which as an acid chloride under the conditions of Friedel-Crafts reaction yields the ketone 5.