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4. What is the IUPAC name of the following compound? (1 pt) CH3 -CH-CH2-C-OH 5. What is the correct I.U.P.A.C. name of the co

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Answer #1

IUPAC Rules for naming compounds :

1) Select the longest carbon chain such that the functional group will get the least number position.

2) Determine the parent chain with a functional group.

3) Place all the substituents alphabetically along with their positions followed by the parent carbon chain.

4.

1) The given compound contains a chain of four carbon atoms with the carboxylic acid functional group.

2) Thus, the parent alkane is butane and with the functional group, it is butanoic acid.

3) The chlorine substituent is attached at position 3, thus the IUPAC name of the compound is 3-chlorobutanoic acid OR

3-chlorobutan-1-oic acid.

5.

1) The given compound contains a chain of four carbon atoms with the carbonyl functional group at position 2.

2) Thus, the parent alkane is butane and with the functional group, it is 2-butanone.

3) There is no substituents in the compound, thus the IUPAC name of the compound is 2-butanone OR

Butan-2-one.

H3C—CH-CH2-C —OH HzC-CH2-C—CH3 3 2 1 CI 3-chlorobutanoic acid butan-2-one

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