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Chapter 31: Q17P (page 1256)

Locate the isoprene units in each compound.

a

b.

Short Answer

Expert verified

Answer

a.

b.

Step by step solution

01

Isoprene units

Isoprene units are a carbon chain containing five carbon atoms and C-C double bonds. One isoprene unit has a formula CH2 = C(CH3)-CH=CH2.

For example, diterpenoids have four isoprene units.

02

Isoprene units in α-pineme

A 伪-pinemeis a monoterpene having two isoprene units and is shown as:

Isoprene units in伪-pineme

03

Isoprene units in humulene.

A humulene is a sesquiterpene having three isoprene units and is shown as:

Isoprene units in humulene

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