
%0 Journal Article
%A Cambie, RC 
%A Dudding, SM 
%A Higgs, KC 
%A Holroyd, SE 
%A Rutledge, PS 
%A Woodgate, PD 
%T Experiments Directed Towards the Synthesis of Anthracyclinones. XXII. Novel Cyclopropanation Reactions
%J Australian Journal of Chemistry
%D 1994/08/01
%V 47
%N 8
%P 1561-1577
%K 
%R https://doi.org/10.1071/CH9941561
%U https://www.publish.csiro.au/paper/CH9941561 
%X Iodine/potassium carbonate induced cyclization of hydroxyanthraquinones with ortho-allyl side chains gives iodomethyldihydrofuran  anthraquinones which undergo a novel cyclopropanation reaction on treatment with methanolic potassium hydroxide, e.g. (9) gives (12) in 77% yield, and (10) gives (13) in 62% yield. The scope of the reaction is explored and a number of by-products are identified and, where possible, their formation is rationalized. 
