(CH3)3C-CH(OH)-CH3 --Conc. H2SO4--> X (major product). X is (as printed in the textbook, options (c) and (d) are the same structure) a) (CH3)3C-CH=CH2 b) (CH3)2C=C(CH3)2 c) CH2=C(CH3)-CH2-CH2-CH3 d) CH2=C(CH3)-CH2-CH2-CH3

(CH3)3C-CH(OH)-CH3 --Conc. H2SO4--> X (major product). X is (as printed in the textbook, options (c) and (d) a

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Q. (CH3)3C-CH(OH)-CH3 --Conc. H2SO4--> X (major product). X is (as printed in the textbook, options

(d) are the same structure)

a) (CH3)3C-CH=CH2

b) (CH3)2C=C(CH3)2

c) CH2=C(CH3)-CH2-CH2-CH3

d) CH2=C(CH3)-CH2-CH2-CH3

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Step 1. (CH3)3C-CH(OH)-CH3 is 3,3-dimethylbutan-2-ol; protonation and loss of water first gives a SECONDARY carbocation at C2 (flanked by the bulky tert-butyl group).

Step 2. A 1,2-METHYL SHIFT from the adjacent tert-butyl carbon converts this secondary cation into a more stable TERTIARY carbocation. …

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Q.(CH3)3C-CH(OH)-CH3 --Conc. H2SO4--> X (major product). X is (as printed in the textbook, options

Concept understanding — Dehydration of Alcohols and Saytzeff's Rule

Q.(CH3)3C-CH(OH)-CH3 --Conc. H2SO4--> X (major product). X is (as printed in the textbook, options

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