
%0 Journal Article
%A Evans, JJ 
%A Bagnell, L 
%A Eibl, R 
%A Holan, G 
%A Mole, T 
%T Reactions of 3,6-Diethoxyxanthen-9-one with alkylaluminium compounds
%J Australian Journal of Chemistry
%D 1975/03/01
%V 28
%N 3
%P 519-523
%K 
%R https://doi.org/10.1071/CH9750519
%U https://www.publish.csiro.au/paper/CH9750519 
%X 3,6-Diethoxyxanthen-9-one reacts with trimethylaluminium to give 3,6- diethoxy-9-methylenexanthene and a little 3,6-diethoxy-9,9- dimethylxanthene. In similar reactions, triethylaluminium gives 3,6- diethoxy-9,9-diethylxanthene, diisobutylaluminium hydride gives 3,6- diethoxyxanthene, and tri-isobutylaluminium gives a mixture of 3,6- diethoxyxanthene and 3,6-diethoxy-9-isobutylxanthene. The 3,6-diethoxy- 9-methylenexanthene has been treated with base and chloroform or bromoform to obtain the corresponding 2,2-dihalo-3?,6?- diethoxyspiro[cyclopropane-1,9?-xanthene]. 
