
%0 Journal Article
%A Birch, AJ 
%A Maung, M 
%A Pelter, A 
%T Studies in relation to biosynthesis. XL. Some aspects of the chemistry of o-isopentenylphenols and related compouncls
%J Australian Journal of Chemistry
%D 1969/09/01
%V 22
%N 9
%P 1923-1932
%K 
%R https://doi.org/10.1071/CH9691923
%U https://www.publish.csiro.au/paper/CH9691923 
%X Several 2,2-dimethylchromene derivatives, including the natural flavonoids scandenin and lonchocarpic acid, have been reduced by lithium in ammonia to o-isopentenylphenols. Several hydroxyisopropyldihydrobenzofurans can similarly be reduced, and one was converted by reaction with N-bromosuccinimide into a benzofuran derivative lacking the isopropyl group. Alkylations of catechol and aesculetin with isoprene dibromide were examined, and in the latter case resulted in what is probably (±)-obliquin. 
