
%0 Journal Article
%A Clark-Lewis, JW 
%A Mahandru, MM 
%T Flavan derivatives. XXXI. Reduction products from Isochromeno(4',3':2,3)-chromones
%J Australian Journal of Chemistry
%D 1971/03/01
%V 24
%N 3
%P 563-570
%K 
%R https://doi.org/10.1071/CH9710563
%U https://www.publish.csiro.au/paper/CH9710563 
%X Some reduction products (chromens, chroman-4-ols, and flavonols) obtained from isochromeno(4?,3?:2,3)chromone and its 7-methoxy derivative with lithium aluminium hydride, sodium di(2- methoxyethoxy)aluminium hydride, and catalytic hydrogenation are described. Allylic coupling is evident in isochromano(4?,3?:2,3)- chrom-3-ens, and the absence of allylic coupling in 3-alkoxyflav-3-enes is therefore attributed to the latter occurring in the conformation with the 2-aryl group axial (cf.1). 
