39It seems 3 is correct. The methyl group has 3 hyperconjugative hydrogens which makes it more activating than the t-Bu group.
which of following is/are correct?
1.bromination of p-nitrotoluene in presence of iron gives 2-bromo-4-nitrotoluene
2.nitration of m-xylne gives 2,4-dimethyl-1-nitrobenzene
3.sulphonation of p-tert-buttyltoluene gives 5-tert-butyl-2-methyl-1-benzenesulhponic acid
4.friedel crafts reacn. of benzene with sec-butyl bromide predominantly gives isobutyl benzene!
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7 Answers
39
1i toh also think tht even 1 is correct :D
btw the answer given is ONLY D
39Yes it's only D..but INCORRECT ONLY..lola I saw 3rd as dimethyls at the same position. The last one is incorrect because sec-butyl cation will rearrange but it will not be a major product as sec-butyl is more stable than isopropyl.
1yes exactly thts what i thought as i found all 1,2,3 correct so maybe question says which is incorrect among following[3][3][3]
ILLUSION OF THE DAY:my first good working approach with any organic problem LOL!!!!!!
