MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl HalidesE elimination follows an antiperiplanar structure

The major product obtained when this alkyl halide is subjected to E2 reaction under the treatment of potassium tert-butoxide will be (a) (b)

C.both (a) and (b) (d) none of these

Explanation

Tert-butoxide is a bulky base, hence, less stable (Hoffman) product is formed. The bromine atom will be eliminated and the hydrogen will be eliminated from beta-carbon atom. The major product is the one which has less substituted carbon atoms. The reaction is given below: ALKYL AND ARYL HALIDES 37

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