SYNTHESIS OF HEXAMERIC LIGNIN MODEL COMPOUNDS

Three different hexameric lignin model compounds were synthesised. Two different synthesis routes were used to obtain trimeric lignin model compounds containing beta-aryl ether bonds. The trimers were dimerised using enzymatic oxidation to hexamers containing beta-O-4 and 5-5' bo nds. The hexamers were characterised with H-1 and C-13 NMR spectroscop y as well as with mass spectrometry.