Abstract
This paper aims to synthesis some novel of benzopyran derivatives using high efficient, solvent free, excellent yield, one pot multicomponent reaction via microwave technique. The prepared compounds are subjected to ultra-sonication to reduce their particle size to nano size and used as a pigment in printing of polyester/cotton, polyester and linen fabrics the fastness properties of the printed fabrics are very good. The structures of prepared pigment are confirmed using (element analysis, IR, H-NMR and MS). The size of prepared and treated dyes are identify by TEM. Graphic abstract explain the suggested scheme for synthesise the hyper branched compound I with TEM image for the different resulting compounds with different moieties before and after sonication.
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