Bromoformates and iodoformates are successfully synthesized in high yields with regioselectivity
and stereoselectivity by using ZnAl-BrO3
– layered double hydroxides (LDHs) and KX (X = Br, I) in the presence of formic acid
(HCOOH). The protocol exploits the versatile function of formic acid as solvent, nucleophilic
reagent, and acidic medium simultaneously, simplifying the reaction and separation
of the products.
Key words
olefins - formic acid - bromoformates - iodoformates - regioselectivity - stereoselectivity