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Chapter 25: Q12P (page 1317)

Circle the eight isoprene units in 尾-carotene.

Short Answer

Expert verified

尾 carotenoids are natural carotenoids classified as tetraterpenes.尾-carotene has eight isoprene structures, eleven conjugated double bonds, and forty carbons backbone. It is composed of two retinyl groups and is irregular terpenewith4-4 linkage.

Step by step solution

01

Structure

尾 carotenoids are natural carotenoids classified as tetraterpenes.尾-carotene has eight isoprene structures, eleven conjugated double bonds, and forty carbons backbone. It is composed of two retinyl groups and is irregular terpenewith4-4 linkage.

02

Step 2:Isoprene units

Isoprene (2-methyl-1,3-butadiene) is a branched chain, five carbon units unsaturated hydrocarbon, having two double bonds (C-C). Itsformula is CH2=C(CH3)鈭扖H=CH2.

Isoprene unit =


Eight isoprene units

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