Also calculate the percent of theoretical yield of dibromocinnamic acid you obtained from cinnamic acid. Given that the reactant was trans -cinnamic acid, determine whether the addition of Br 2 to it was anti or syn to form the product you obtained. Show your reasoning with stereochemical drawings. These terms refer to compounds with two chiral centers having similar attached groups. If these similar groups line up so that they could eclipse each other the compound is erythro .
Prime examples are erythrose and threose carbohydrates.
Include the 1 H NMR spectrum of your product. Strom, L. A., Anderson, J. R. and Gandler, J. R. J. Chem. Corvari, L, McKee, J. R., and Zanger, M. J. Chem.