Give the structure of alkene 2 methyl buta - 1,3 - diene?

1 Answer
Apr 13, 2018
  • 'buta', the stem/root name of the compound means that the longest C-chain in its structure conttains 4 C-atoms.

#-stackrel(1)C-stackrel(2)C-stackrel(3)C-stackrel(4)C-#

  • '-1-3-diene',suffix name denotes the presence of two #C=C# bonds in between 1-2 and 3-4 carbon atoms.

#-stackrel(1)C=stackrel(2)C-stackrel(3)C=stackrel(4)C-#

  • '2-methyl',prefix name denotes the presence of a methyl group (#CH_3-#) at position -2 .

#-stackrel(1)C=stackrel(2)C(CH_3)-stackrel(3)C=stackrel(4)C-#

  • So the structural formula becomes like this after satisfying residual valency by H-atoms

    #stackrel(1)CH_2=stackrel(2)C(CH_3)-stackrel(3)CH=stackrel(4)CH_2#