Write the structure of the hydroxy acid corresponding to each of the lactones shown in Figure 19.7.
Figure 19.7
Some naturally occurring lactones.
(a) Mevalonolactone
(b) Pentadecanolide
(c) Vernolepin
Sample Solution (a) The ring oxygen of the lactone is derived from the OH group of the hydroxy acid. To identify the hydroxy acid, disconnect the O—C(O) bond of the lactone.
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