Question

Your answer is partially correct. Try again Although both 1-bromobutane and 4-bromo-1-butene are primary halides, the latter undergoes elimination more rapidly. How can this behavior be explained? but-2-ene The product formed when 1-bromobutane undergoes elimination is a simple monosubstituted alkene J. when 4-bromo-1-butene undergoes elimination, the product is relative stablites of the products. Since but-1,3-ene a conjugated dieneand therefore, a more stable # product. The transition states leading to the products reflect the the transition state leading to 1,3-butadiene has the lower free ener gy of activation , the elimination reaction of 4-bromo-1-butene will occur more rapidly. react

Answer 1

(Here not any pi - conjugation is present unlike the other) (conjugation is there more effectively blw the two pi - bonds) (Delta G^notequalto)_B < < (Delta G^notequalto)_A Hence, despite being both primary halides, 4 - bromo - 1 - butane undergoes elimination more rapidly.