Rank the following carbocations from most stable to least stable. The regioselec
ID: 975324 • Letter: R
Question
Rank the following carbocations from most stable to least stable. The regioselectivity and stereospecificity in hydrohalogenation of an alkene is best described as Markovnikov orientation with syn-addition Markovnikov orientation with anti-addition anti-Markovnikov orientation with syn-addition anti-Markovnikov orientation with anti-addition Markovnikov orientation with both syn- and anti-addition What reagents are needed to accomplish the following transformation? Which of the following pairs are keto-enol tautomers?Explanation / Answer
7) Answer is - a
beacause Alkyl group show electron donating inductive effect stabilise the carbocation in the structure 1 three site Alkyl group stabilise carbocation so it is most stable.in structure 2 two site alkyl stabilize carbocation so it is less stable than 1 and more stable than 3. in strcture 3 only one alkyl stabilise to carbocation so it is least stable.
8) in the markonikov reaction negative part that mean halogen atom go to that carbon those form more stable carbocation so this reaction is Regioselective
& in antimarkonikov reation in presence of peroxide HBr addition take place in opposite manner of markonikov addition because it is radical reaction and it is also Regioselective
But both reaction do not say about anti addition or syn addition depend on the alkene structure syn or anti addition take place .in some alkene enatiomer of each other formed.
9) e
10) structure 3 are tautomer of each other
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.