Method of preparation of derivatives (7th-9z) -alcadienols

PREPARATION OF COMPOUND REPRESENTED BY FORM BELOW GENERAL. (CF DRAWING IN BOPI) R OR IS LOWER ALKYL GROUP AND A HYDROGEN ATOM OR GROUP ACYL LOWER THE SUBSTANCE OF DEPARTURE IS DERIVATIVE nonanal, OR DIALCOXYNONANE, OR 2-HALO-1,1-DIALCOXYNONANE OR nonene OR nonenal. PROCESS INTERESTING SCALE INDUSTRIAL PRODUCTS FOR OBTAINING HAVING BIOLOGICAL EFFECTS.