Write Brief Answer · Q45
Q.Write the structures of following alkanes.
1) 2,3-Dimethyl-6-(2-methylpropyl)decane
2) 5-(2-Ethylbutyl)-3,3-dimethyldecane
3) 5-(1,2-Dimethylpropyl)-2-methylnonane
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Start your 14-day free trial to unlock the full solution →Step 1 (2,3-Dimethyl-6-(2-methylpropyl)decane). Draw and number a ten-carbon (decane) chain, C1-C10. Attach a methyl group at C2, a second methyl group at C3, and a (2-methylpropyl) = isobutyl group [-CH2-CH(CH3)2] at C6. Condensed structure: CH3-CH(CH3)-CH(CH3)-CH2-CH2-CH(CH2CH(CH3)2)-CH2-CH2-CH2-CH3.
Step 2 (5-(2-Ethylbutyl)-3,3-dimethyldecane). Draw and number a ten-carbon (decane) chain, C1-C10. Attach TWO methyl groups both at C3 (a gem-dimethyl branch point), and a (2-ethylbutyl) group [-CH2-CH(C2H5)-CH2-CH3] at C5. Condensed structure: CH3-CH2-C(CH3)2-CH2-CH(CH2CH(C2H5)CH2CH3)-CH2-CH2-CH2-CH2-CH3. …
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