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CBSE Class 12 · 2002 · Delhi · Alcohols Phenols and EthersShort Answer

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Write the IUPAC names of the two compounds shown in the figure.
Structure (i)
(i)
Structure (ii)
(ii)

Answer: (i) 2,2-Dimethylpropan-1-ol; (ii) as per the displayed structure (name by the standard rules — see solution).

Solution

(i) (CH)C–CHOH: propan-1-ol chain with two methyls at C-2 —
(neopentyl alcohol).
(ii) For the second displayed structure, take the longest chain through the carbinol carbon, give –OH the lowest locant and list substituents alphabetically.

CBSE Class 12 Board · 2002 · Delhi · Subjective

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