1.

Which of the following syntheses could not be doen without involving blocking positions on the ring?

Answer»




Solution :In (c), phenol is `o-` and `p-` directing so both the PRODUCTS would be obtained. Thus to obtain ortho-product exclusively, `p-` POSITION has to be blocked FIRST, and then `Br` intoduced in ortho-postion, FOLLOWED by the removel of group from `p-` postion.


Discussion

No Comment Found