Question

For the reaction below, focus only on 2-methyl-2-butanol (starting material) and 2-chloro-2-methylbutane (desired product). We will not analyze HCl or H2O by IR.

  1. From the two IR spectra below, identify which spectrum belongs to which molecule. Then label the IR spectrum with the molecule’s characteristic IR peaks. Highlight or place a box around the most characteristic peak in the starting material’s IR. You do not need to label the fingerprint region.

For the reaction below, focus only on 2-methyl-2-butanol (starting material) and 2-chloro-2-methylbutane (desired product). W

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Answer #1

Answer::::

Here in given reaction transformation starting material is an tertary alcohol whene react with an acid HCl first give protionation an form carbocation with removal of H2o, then Cl- get attack on formed carbocation to get desired final product via SN1 reaction Mechanisum.

Major peak in Given IR spectrum of Starting material that is tertary alcohol :

1) O-H broad straching frequency observed at 3300 - 3500 cm-1, witch matches to our compound.

2) C-H assymetric straching frequency observed at Sp3 hybridized carbon hydrogen at 2900 cm-1.

these are two main Functional group region peacks are observed in given ir spectrum

Major peak in Given IR spectrum of Final Product :

1) 0nly C-H sp3 hybridized straching frequency observed at 2900-3000 cm-1.

According to Analysing both spectrum here in final product there are absent of O-H broad band hence our reaction is completed.

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