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Chapter 25 803
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b.
It has 30 carbons, so it is a triterpene.
CH
3
CH
3
CH
3
H
3
C
CH
3
CH
3
CH
3
CH
3
42.
First, draw the starting material (geranyl pyrophosphate) so that its structure is as similar as possible to that
of the target molecule.
+
+
H
+
B
geranyl pyrophosphate
−
O
−
O
−
O O O
P
O
P
O
−
−
O
−
O
−
O O O
P
O
P
O
-pinene
-pinene