This disclosure relates to compositions and methods for converting biomass to various chemical intermediates and final products including fuels. Aspects include the depolymerization of lignin, cellulose, and hemicellulose to a wide slate of depolymerization compounds that can be subsequently metabolized by genetically modified bacterium, and converted to cis,cis-muconic acid. Other aspects include the use of monometallic catalysts for converting the cis,cis-muconic acid to commodity chemicals and fuels, for example adipic acid and/or nylon.
 The United States Government has rights in this invention under Contract No. DE-AC36-08GO28308 between the United States Department of Energy and Alliance for Sustainable Energy, LLC, the Manager and Operator of the National Renewable Energy Laboratory.