Question: Identify the isoprene units in Î²-carotene (see Figure 26.6). Which carbons are joined by a tail-to-tail link between isoprene units? FIGURE 26.6 Some representative terpenes

Identify the isoprene units in Î²-carotene (see Figure 26.6). Which carbons are joined by a tail-to-tail link between isoprene units?
FIGURE 26.6
Some representative terpenes and related natural products. Structures are customarily depicted as carbon skeleton formulas when describing compounds of isoprenoid origin.
Question continue over next page

Monoterpenes Menthol peppermint) Citral lemon grass) (eucalyptus) Sesquiterpenes OH OH Farnesol ambrette Abscisic acid (a plant hormone) (celery) Diterpenes Cembrene ping) Vitamin A (present in mammalian tissue and fish oil; important substance in the chemistry of vision) Triterpenes Squalene (shark liver oil) B-Carotene (present in carrots and other vegetables; enzymes in the body cleave B-carotene to vitamin A)

Step by Step Solution

★★★★★

3.35 Rating (170 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Carotene is a tetraterpene because it ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

924-C-OC-A (1283).docx

120 KBs Word File

Students Have Also Explored These Related Organic Chemistry Questions!

Identify the isoprene units in -carotene (see Figure 26.6). Which carbons are joined by a tail-to-tail link between isoprene units?

Identify the isoprene units in each of the following naturally occurring substances: (a) Ascaridole, a naturally occurring peroxide present in chenopodium oil:

Identify the isoprene units in each of the following naturally occurring substances: (a) Ascaridole, a naturally occurring peroxide present in chenopodium oil: (b) Dendrolasin, a constituent of the...

Confirming Pages C H A P T E R 19 Analyzing Information and Writing Reports Chapter Outline Using Your Time Efficiently Analyzing Data and Information for Reports Identifying the Source of the Data...

(2) Ent-Kaurene is an important (diterpene) biosynthetic intermediate in making many bio- active agents, including plant hormones such as gibberellins. Indicate the isoprene units in ent-kaurene....

Use the References to access important values if needed for this question. Analyze the following structure of citral in terms of isoprene units joined by head-to-tail linkages. (1) How many isoprene...

The structure of the terpene limonene is shown in the margin. Identify the two 2-methyl-1,3-butadiene (isoprene) units in limonene. (a) Treatment of isoprene with catalytic amounts of acid leads to a...

1- The addition of water to myrcene produce: A) Citral B) Carvone (C) Gerniol D) a-terpinol 2- Conversion of camphor into benzylidene derivative indicates .... A) It is bicyclic monoterpenoid (C)...

Lycopene, the pigment that gives tomatoes their red color, is a terpene derived formally by the joining together of numerous isoprene units (see the Interlude in this chapter). Start at one end of...

Isoprene units as used by nature for the elaboration of terpenes can be prepared by 2 major metabolic routes. a) Provide the names of these pathways used for the preparation of isoprene units ( 2...

Describe what criteria are applied when choosing a policy instrument.

Explain why temporary differences result in deferred tax assets or deferred tax liabilities while permanent differences do not, and describe the difference in the formation of deferred tax assets and...

an investment of 1 , 0 0 0 today returns 5 6 , 0 0 0 in 5 0 yeas, what is the internal rate of return

Tempting subjects A psychologist conducts the following experiment: she measures the attitude of subjects toward cheating, then has them play a game rigged so that winning without cheating is...

Many polycyclic aromatic compounds have been synthesized by a cyclization reaction known as the Bradsher reaction or aromatic cyclodehydration. This method can be illustrated by the following...

Write mechanisms that account for the products of the following reactions: (a) (b) (-H20) HA

The addition of a hydrogen halide (hydrogen bromide or hydrogen chloride) to 1-phenyl 1,3-butadiene produces (only) 1-phenyl- 3-halo-1-butene. (a) Write a mechanism that accounts for the formation of...

what was the issue that court trying to find 2 2 . 2 ( Genesis Health Clubs, Inc. v . LED Solar and light co )

The following data was obtained from 6 months of traffic accident records in the north direction and the south direction of the NJ turnpike. The variable "total number of fatal and non-fatal crashes"...

Using the apple 1 0 - k Step 1 : Calculate Ratios Use the same company and 1 0 - K you worked with in Week 2 Download this Excel template Download this Excel templateand fill out the first tab, the...