Abstract
A new reduction sequence designed to transform polyfunctional molecules to hydrocarbons is applied to fulvic acid isolated from Sargasso Sea and coastal water. Following methylation, samples are reduced by high-pressure hydrogenation. These products are treated with dibromotriphenylphosphorane to brominate alcohols and phenols and to cleave ether linkages. Finally, the brominated products are reduced by low pressure hydrogenation and hydrocarbons are isolated by liquid-solid chromatography. The hydrocarbons produced indicate that marine lipids are important structural components and that terrestrial sources are minor, even in coastal samples. Also, an unusual series of aromatic structures was obtained, the source of these is unknown.
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