Isobornyl chloride, from camphene hydrochloride

Formation of isobornyl chloride from camphene hydrochloride corresponds to that of pinacolin from pinacone. 

In our second puzzle, we begin with exactly the same series of reactions from a-pinene hydrochloride (5.46) to camphene (5.50) that we saw in Figure 5.31. They are repeated again in Figure 5.34 to emphasise the difference between the formation of bornyl chloride (5.46) from a-pinene and the formation of isobornyl chloride (5.55) from camphene (5.50). 

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