Monoaromatic tricyclicditerpenes are biomarker of shale,coal and heavy oil.Its orgin was from diterpenes of higher plants and resin which were decarboxylated and partically aromatized under complex geological environment.Here five monoaroma tictricyclicditerpenes have been synthesize dusing 1,2,3,4 tetrahydronaphthane and succinct anhydride.All compounds were confirmed IR, 1H NMR and MS.
The catalysis of potassium carbonate in perkin reaction for the preparation of a-furanaerylic acid was discussed and comparedwith that of sodium acetate. With K2CO3 the Perkin reaction of furfuraldehtyde can be carried out at lower temperature, in shorter time,with less catalyst in higher yield and with better repeatability.
