Question

Please help me answer these questions so that I can undestand, I am confused and in need of help. Thank you.

What would be the major product for the following reaction? KotBu ????? ل ل ل ا O lll only O V Only OIV only oland V oll only

Answer 1

*.question 1  answer is III only

*.question 2 answer is I and II

*question 3 answer is option a. 1,3,5 tribromobenzne getting only singlet all other molecules won't get singlet nmr signals so answer is a.

Answers :- kot Bu Ans: lll only. Explanation :- *.koc (CH₃)3 – Strong and bulky base, *. It can be used to form less subsituld alken in Ezran. *. Elimination form less substined alkene Hoffmann Proteut. Li J Naout WEoH Ans: I and II. Explanation: * This is Ez reaction. Majorly Rectant Strutenl is playing important role A Base can absmat Proton in less hindrated site (marked) So that we can get a Protects.

*question 4 answer is option d. All other molecules having symmetric structure. Only d getting c13 signals.

*question 5 answer is d. E 1 reaction ,first step formation of carcations ,in this reaction 2 carbonation forming after 1,2 shift stable tretry carbocation forming after elimination takes place.

) 1 Base, - 112 Shett zo carbocation 2o carbcation Anguer