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Chapter 12: 40E (page 385)

Carvone (Problem 12-39) has an intense infrared absorption at . What kind of ketone does carvone contain?

Short Answer

Expert verified

Ketone is a cyclic conjugated ketone

Step by step solution

01

Definition of Infrared absorption

Infrared is the electromagnetic waves that are irradiated on the compound to identify the strength of the chemical bonds present within the compound.

The absorption of the infrared radiation termed infrared absorption

This method helps us to determine exchangeable atoms.

02

Carvone

Carvone belongs to the family of terpenoids. These are the chemicals found naturally in essential oil but most abundantly in the oils from the seeds of dill and many others.

03

Infrared absorption

The range would be of C=C and that of indicates that the ketone is cyclic conjugated ketone as from the formula, we calculated that O is present.

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Most popular questions from this chapter

Question:The mass spectrum (a) and the infrared spectrum (b) of an unknown hydrocarbon are shown. Propose as many structures as you can.

Predict the products for the reactions in Problem 8-26 if each were run in DMSO with water. Show the complete mechanism including appropriate regiochemistry and stereochemistry.

Question: The infrared spectrum of the compound with the mass spectrum shown below has strong absorbances at 1584, 1478, and 1446cm-1. Propose astructure consistent with the data.

Question: The nitrogen ruleof mass spectrometry says that a compound containing an odd number of nitrogen’s has an odd-numbered molecular ion.

Conversely, a compound containing an even number of nitrogen’s has

an even-numbered M+peak. Explain.

Question: How could you use infrared spectroscopy to distinguish between the

following pairs of isomers?

(a)HC≡CCH2NH2andCH3CH2C≡N

(b)CH3COCH3andCH3CH2CHO
See all solutions

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