FURTHER STUDY ON THE ONE-POT SYNTHESIS OF (E)-2-NONENAL FROM CASTOR-OIL

A one-step procedure is described for the synthesis of (E)-2-nonenal f rom commercial castor oil by oxonolysis in methanol, followed by reduc tion of the ozonide products with dimethyl sulfide and exposure of the resulting intermediate product to dilute sulfuric acid. The developed process allows the production of the aldehyde with a yield of 80% at a purity of 95%. The method has advantages over all those reported ear lier, because of inexpensive raw material and reducing agent, recyclin g of the solvent and its unusual simplicity.