Shweta thakur Asked a Question
November 6, 2020 8:40 pmpts 30 pts
Role of anhydrous ZnCl, in GOves' process. Anhydrous ZnCl, being a Lewis acid accepts an electron from the oxygen atom of alcohols. The presence of positive charge on the oxygen atom weakens the band which ultimately breaks to form a carbocation as shown in the SI mechanism discussed above SNR R+[HOZnCl, ZnCl1tc On R-0-H +ZnCl, RLO-ZnCl, RU ft H Ifthe structure of R is such that it can undergo rearrangement to form a more stable carbocation, then the major product will be the alkyl halide derived from the rearranged carbocation as discussed below f, however, the concentration of zinc chloride is low, the reaction occurs by Sa2 mechanism. ZnCl,+HCI H+ZnCl +(ZnCĘR_OH + H R-OH ZnCl-CI +*R LOH2 Sy2 R-CI+ZnCl, tH,O
  • 2 Answer(s)
  • 0 Likes
  • 3 Comments
  • Shares
  • Suman Kumar
    Same as BF3 + F- = BF4 - ZnCl2 + Cl- = ZnCl3- This negative charge is formal charge.
    Likes(1) Reply(0)
  • Priyanshu kumar Best Answer
    ZnCl2 is a Lewis acid because it can accept an electron pair from a Lewis base.  So Zncl2 + cl- - zncl3-
    Likes(0) Reply(0)
  • Dinesh khalmaniya thankyou
    ZnCl2 is Lewis acid so it can react with HCl to give ZnCl3-
    Likes(0) Reply(0)