1.

Write the IUPAC name of the compound CH_3 CH_2- undersetoverset(|)(OH)(C)H - CH_3

Answer»

SOLUTION : (a) There are 4 C atoms in the longest CONTINUOUS chain involving -OH group, THEREFORE, the root word is .but.
(b) Only C-C bonds APPEAR in the carbon chain, therefore, primary suffix is .ane..
(c) There is OH group at carbon 2 of the chain, therefore, secondary suffix is 2-o.. Base name = root word + primary suffix = but + ane = butane
(d) There is one-CH, radical at carbon 3 of the chain. Therefore, prefix is 3-methyl..
Thus, the IUPAC name of the given compound is derived as:
Prefix + Base name -e + Secondary suffix
3-Methyl + butane -e+ 2-ol = 3-methylbutan-2-ol


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