6. For each question below, idenily the one substrate that reacts the jastest wh

Question

6. For each question below, idenily the one substrate that reacts the jastest when treated with hydrochloric acid at room temperature A 3,3-Dimethylpentanol C2-Methyl-2-hexanol B 4-Methyl-2-hexanol D 2,2-Dimethylpentan-1-ol A 1-Phenyl-2-heptanol C (1-Hydroxyethyl)cyclohexene B1-Phenyl-1-heptanol D 3-(1-Hydroxyethyl)cyclohexene A 5-Chloro-2-methylheptan-2-ol C 2-Chloro-2-methylheptan-l-ol 7. For each question below, identify the one substrate that reacts the fastest when treated B6-Chloro-6-methylheptan-3-ol D |2-Chloro-2-methylheptan-3-ol with PBr: A 3,3-Dimethylpentanol B 4-Methyl-2-hexanol C2-Methyl-2-hexanol D 2,2-Dimethylpentanol A Cyclohexanol B1-Methylcyclohexanol CI-(Hydroxymethyl)-1 1-(Hydroxymethyl)-1-methylcyclohexane D1-(2-Hydroxyethyl)-1- methylcyclohexane A 4-Methyl-3-penten-1-ol C 6-Methyl-5-hepten-2-ol B3-Methyl-2-buten-1-ol D 2,4-Dimethyl-2-hepten-4-ol

Explanation / Answer

proble 6 will follow throught the carbo cation intermediate

so alcohol that can form the more stable carbo cation (3º carbocation) will be fastest

1º carbocation will be slowest

you explanation is correct

a is option C is correct

b is option B is correct

c is option A

7)

PBR3 reaction follows the SNi or

we can consider as a SN2 al alcohols which are sterically less hindered will under go most quickly

fastest will be primary alcohols and slowest will be tertiery alcohols

a is option A is correct

b is option A is correct

c is option B is correct

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