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The IUPAC name of the compound is :- H...

The IUPAC name of the compound is :-
`H -= C - CH_(2) - CH_(2) -oversetoverset(CH_(2)=CH)(|)C=CH - oversetoverset(H)(|)C=O`

A

3-(1-butynl) -2,4-pentadienal

B

5-Ethynyl -3-vinyl -2-pentenal

C

3-vinyl -2-hepten-6-ynal

D

5-Acetyl -3-ethenyl-2-pentanal

Text Solution

AI Generated Solution

The correct Answer is:
To determine the IUPAC name of the given compound, we will follow a systematic approach: ### Step-by-Step Solution: 1. **Identify the Structure**: The compound has a chain with multiple functional groups including a double bond (alkene), a triple bond (alkyne), and an aldehyde group (–CHO). 2. **Determine the Longest Carbon Chain**: We need to find the longest continuous chain of carbon atoms that includes the highest priority functional group. In this case, the longest chain consists of 7 carbon atoms. 3. **Number the Carbon Chain**: We will number the carbon chain starting from the end nearest to the highest priority functional group, which is the aldehyde. This ensures that the aldehyde gets the lowest possible number. - The numbering will be as follows: - C1: CHO (aldehyde) - C2: C=C (double bond) - C3: C≡C (triple bond) - C4: CH2 - C5: CH2 - C6: CH - C7: CH2 4. **Identify and Name the Substituents**: The compound has a vinyl group (–CH=CH2) as a substituent on the third carbon. 5. **Assign Locants to Functional Groups**: - The aldehyde is on carbon 1. - The double bond is between carbons 2 and 3. - The triple bond is on carbon 6. - The vinyl group is on carbon 3. 6. **Construct the Name**: According to IUPAC rules, we will list the substituents in alphabetical order, followed by the main chain name. The main chain is a heptene due to the presence of a double bond, and we will indicate the positions of the double and triple bonds. - The name will be structured as follows: - The vinyl group on carbon 3 is named first. - The double bond is indicated as "2-heptene". - The triple bond is indicated as "6-yne". - The aldehyde suffix is "al". Thus, the full name is: **3-Vinyl-2-hepten-6-yne-1-al**. ### Final IUPAC Name: **3-Vinyl-2-hepten-6-yne-1-al** ---
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Knowledge Check

  • The correct IUPAC name of the compound CH_(2)=CH-CH_(2)-oversetoverset(C_(2)H_(5))(|)(CH)-CH_(3)

    A
    `4`-Ethylpent-`1`-ene
    B
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    C
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    D
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  • The IUPAC name of the compound CH_(3) - oversetoverset(OH)(|)CH -CH_(2) - oversetoverset(CH_(3))(|)CH -CHO is

    A
    4-Hdroxy-1-methylpentanal
    B
    4-Hydroxy-2-methylpentanal
    C
    2-Hydroxy-4-methylpentanal
    D
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  • The IUPAC name of given compound is :- CH_(3) - C -= C - undersetunderset(CH_(3))(|)oversetoverset(CH_(3))(|)C-CH_(3)

    A
    methyl tertiarybutyl acetylene
    B
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    C
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    D
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