Chapter 12: Q28E (page 354)
The following two hydrocarbons have been isolated from various plants in the sunflower family. Name them according to IUPAC rules.

Short Answer
The structure of the given compounds are:
(a)

(b)

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Chapter 12: Q28E (page 354)
The following two hydrocarbons have been isolated from various plants in the sunflower family. Name them according to IUPAC rules.

The structure of the given compounds are:
(a)

(b)

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Predict the products from reaction of 5-decyne with the following
reagents:
(a) , Lindlar catalyst
(b) Li in
(c) 1 equiv
d) in THF, then ,
(e) , ,
(f) Excess , Pd/C catalyst
Question: How could you use infrared spectroscopy to distinguish between the
following pairs of isomers?
(a)
(b)
Where might the following compounds have IR absorptions?

How would you prepare the following substances, starting from any
compounds having four carbons or fewer?

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


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