Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... The dissolving metal reductions of certain allenic carbonyl compounds leads to the formation of cyclic alcohols with high regioselectivity. ... 6-Methylhepta-4,5-dienal was prepared by Swern oxidation (ClCOCOCl, DMSO, Et 3 N) of the corresponding alcohol: 1 IR 2700, 1970, ...