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 glyoxal monoacetal , now readily available in bulk quantity, is a very useful synthon for the dienes-1,3 synthesis, as illustrated in the stereoselective preparation of ethyl 2E, 4Z-decadienoate using two Wittig-type olefination reactions. ... A. Blanc, F. Hamedi-Sangsari, F. Chastrette, ...