OZONOLYSIS OF CYCLODODECENE

Ozonolysis of cyclododecene was carried out to produce an omega-formyl carboxylic acid (12-oxododecanoic acid) which is derived from zwitter ion and aldehyde moiety that are formed during the reaction. The ozono lysis was performed to examine the product distribution under such rea ction variables as temperature, kinds of solvent, and presence of cata lyst. The yield of polymeric ozonide, which is undesirable product, wa s measured to be dominantly 86% without pyridine catalyst, whereas, on ly 10.25% with the catalyst. The optimum reaction condition was to be in MC (methylene chloride) solvent, and in the presence of equimolar o lefin and pyridine catalyst at 0-degree-C, at which the yields of poly meric ozonide, 1,12-dodecanedialdehyde, 1,12-dodecanedicarboxylic acid , and 12-oxo-dodecanoic acid were 10.25%, 26.72%, 26.31%, and 36.72%, respectively.