1,2-Ethanediamine, acetate (1:2) is used as a catalyst for the preparation of various organic compounds such as methanodibenzodioxocin flavonoids, and chromeno-annulated cis-fused pyrano[3,4-c]benzopyran. It is also useful reagent for the synthesis of organic compunds such as arylmethyl nitrodihydroimidazopyridinium.