(a)
To determine: The number of isoprene units in the given terpene and identification of the terpene as a monoterpene, sesquiterpene or diterpene.
Interpretation: The number of isoprene units in the given terpene and identification of the terpene as a monoterpene, sesquiterpene or diterpene are to be stated.
Concept introduction: An isoprene unit is bunched of five-carbon atoms. In terpenes, the isoprene units are connected to each other in head to tail fashion. The head part of an isoprene unit is branched, whereas the tail part of an isoprene unit is un-branched.
(b)
To determine: The number of isoprene units in the given terpene and identification of the terpene as a monoterpene, sesquiterpene or diterpene.
Interpretation: The number of isoprene units in the given terpene and identification of the terpene as a monoterpene, sesquiterpene or diterpene are to be stated.
Concept introduction: An isoprene unit is bunched of five-carbon atoms. In terpenes, the isoprene units are connected to each other in head to tail fashion. The head part of an isoprene unit is branched, whereas the tail part of an isoprene unit is un-branched.
(c)
To determine: The number of isoprene units in the given terpene and identification of the terpene as a monoterpene, sesquiterpene or diterpene.
Interpretation: The number of isoprene units in the given terpene and identification of the terpene as a monoterpene, sesquiterpene or diterpene are to be stated.
Concept introduction: An isoprene unit is bunched of five-carbon atoms. In terpenes, the isoprene units are connected to each other in head to tail fashion. The head part of an isoprene unit is branched, whereas the tail part of an isoprene unit is un-branched.
(d)
To determine: The number of isoprene units in the given terpene and identification of the terpene as a monoterpene, sesquiterpene or diterpene.
Interpretation: The number of isoprene units in the given terpene and identification of the terpene as a monoterpene, sesquiterpene or diterpene are to be stated.
Concept introduction: An isoprene unit is bunched of five-carbon atoms. In terpenes, the isoprene units are connected to each other in head to tail fashion. The head part of an isoprene unit is branched, whereas the tail part of an isoprene unit is un-branched.
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Chapter 25 Solutions
ORGANIC CHEMISTRY MASTERINGCHEM ACCESS
- Analyze the following structure of limonene in terms of isoprene units joined by head-to-tail linkages. (1) How many isoprene units are there in a limonene molecule? (2) Classify limonene as a monoterpene (one terpene unit), a sesquiterpene (1.5 terpene units), or a diterpene (2 terpene units).arrow_forwardLocate the isoprene units in biformene, a component of amber, and classify biformene as a monoterpene, sesquiterpene, etc.arrow_forwardDraw a structure for 4-bromo-2-pentene where the double bond has a Z geometry and the chiral carbon an S configuration.arrow_forward
- Skeletal (line bond) structure of 3- methypentanearrow_forwardWhich of the compounds listed on the previous page are terpenes? Which of the compounds listed on the previous page are terpenoids?arrow_forward(a) Locate the isoprene units in lycopene, the red pigment in tomatoes. (b) Which isoprene units are connected in a head-to-tail fashion? (c) Label any other isoprene unit as connected in a head-tohead fashion or a tail-to-tail fashion. (d) Classify lycopene as a monoterpene, sesquiterpene, and so on.arrow_forward
- Analyze the following structure of phytol in terms of isoprene units joined by head-to-tail linkages. (1) How many isoprene units are there in a phytol molecule? (2) Classify phytol as a monoterpene (one terpene unit), a sesquiterpene (1.5 terpene units), or a diterpene (2 terpene units).arrow_forwardA student was given the following list of structural formulas of several compounds and was asked to give them systematic names. How many did the student name correctly? Correct those that are misnamed and explain why it is incorrect. 2,2-dimethyl-4-ethylheptane 5-(2,2-dimethylethyl)nonane 3,3-dichlorooctane 5-ethyl-2-methylhexane 3-isopropyloctane 2-methyl-2-isopropylheptanearrow_forwardDraw structural formulas for the other two stereoisomers of 2,4-heptadienearrow_forward
- For a cyclic alkyne having 5 carbon atoms, how many carbon atoms will it have?arrow_forwardWhich of the following is NOT actively unsaturated? toluene 1-chlorohex-2-ene 3-methylcyclohexene Cyclopentenearrow_forwardWrite the structural formulas for two (2) chloro-isomers that can formed from 2-methypropane (isobutene). How many sets of equivalent hydrogen are there in the compound 2-methypropane?arrow_forward
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