abstract:turmeric is a member of the ginger family (zingiberaceae), which is extensively used as a spice, food preservative and colouring material. curcumin is a main bioactive natural compound derived from the rhizome of this plant. curcumin can exist in several tautomeric forms, keto and enol. the keto form is more stable than enol form. silyl ethers have proven to be versatile substrates for...