given question

Thus is the question given in my textbook

my working This is my attempt at the question given solution

This is the solution given in the textbook.

I don't understand how a ketone is formed instead of an acid. related question This is a related question but in this a tertiary alcohol is formed instead of a ketone. What is the mechanism of formation if ketone and why is my mechanism wrong?


1 Answer 1


There is a good explanation of the possible mechanisms of the ketone formation here which I have reproduced below. No pathway leads to an acid. Your mechanism has multiple CO insertions and only one occurs.

enter image description here

  • $\begingroup$ What if excess CO is used, even then only 1 insertion will take place? $\endgroup$ Apr 12, 2022 at 9:57
  • 1
    $\begingroup$ Only one insertion will occur. As the reaction is run under an atmosphere of CO there will always be an excess present. $\endgroup$
    – Waylander
    Apr 12, 2022 at 11:20

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.