Question

Choose the best answer for the major product for the reaction below. OH H2SO4 (conc) heat OSO H OSO,

Answer 1

Secondary alcohols on heating in the presence of conc sulphuric acid gives alkenes. This is the example for elimination reaction. The product formed in the given reaction is as follows: conc H2SO4 heat In this reaction, there are two possibilities for the formation of alkene, they are But the first product will be the major product because it follows the Saitzeff's rule. According to that rule, the proton must be removed from the carbon with less number of hydrogens and forms more substituted alkene. Compared to second product, the first one is more substituted.