synthesis, characterization and catalytic properties of go@fucoidan: a heterogeneous bio-based catalyst for the synthesis of α-aminophosphonate derivatives

In this study, fucoidan (fu), a fucose-rich sulfated polysaccharide extracted from brown algae fucus vesiculosus was used for preparation of go@fu composites. the structural and properties of go@fu were investigated by edx, xrd, ft-ir, tga, sem, the catalytic activity of go@fu was studied for the synthesis of α-aminophosphonates through three-component reactions aldehydes/ ketones, amines and nucleophile such as triethyl phosphite. easy ways of synthesis, high product yield and short reaction time made go@fu an attractive and efficient heterogeneous biocatalyst for organic chemist.