Which of the following is an organic compound with the formula CH 3OC 6H 5 used as a perfume, fragrance and solvent?
Anisole
Identifying the Organic Compound: $\text{CH}_3\text{OC}_6\text{H}_5$
The question asks us to identify an organic compound based on its chemical formula, $\text{CH}_3\text{OC}_6\text{H}_5$, and its uses as a perfume, fragrance, and solvent. Let's analyze the given formula.
The formula $\text{CH}_3\text{OC}_6\text{H}_5$ represents a molecule where a methyl group ($\text{CH}_3$) is connected to a phenyl group ($\text{C}_6\text{H}_5$) via an oxygen atom (O). This structure is characteristic of an ether where one alkyl group (methyl) and one aryl group (phenyl) are linked by an oxygen bridge. Such compounds are called alkyl aryl ethers.
The common name for methyl phenyl ether is Anisole.
Examining the Options
Let's look at the structures and properties of the given options to determine which one matches the description:
- Anisole: The structure of Anisole is indeed methyl phenyl ether, with the formula $\text{CH}_3\text{OC}_6\text{H}_5$. Anisole is known for its pleasant, anise-like aroma and is widely used in perfumery, flavorings, and as a solvent. This matches the description provided in the question.
- Toluene: Toluene is methylbenzene, with the formula $\text{C}_6\text{H}_5\text{CH}_3$. It is a common organic solvent, but its primary use is not as a fragrance, and its formula is different from $\text{CH}_3\text{OC}_6\text{H}_5$.
- Acetophenone: Acetophenone is methyl phenyl ketone, with the formula $\text{C}_6\text{H}_5\text{COCH}_3$. It is a ketone and is sometimes used in fragrances, but its formula is not $\text{CH}_3\text{OC}_6\text{H}_5$.
- Aniline: Aniline is phenylamine, with the formula $\text{C}_6\text{H}_5\text{NH}_2$. It is an amine and has an unpleasant odor, making it unsuitable for use as a perfume or fragrance. Its formula is also different from $\text{CH}_3\text{OC}_6\text{H}_5$.
Comparing Formula and Uses
Based on the analysis, Anisole is the only compound among the options that has the formula $\text{CH}_3\text{OC}_6\text{H}_5$ and is used as a perfume, fragrance, and solvent.
Conclusion
The organic compound with the formula $\text{CH}_3\text{OC}_6\text{H}_5$ used as a perfume, fragrance, and solvent is Anisole.
Revision Table: Organic Compounds
| Compound | Formula | Structure Type | Common Uses | Matches Question? |
|---|---|---|---|---|
| Anisole | $\text{CH}_3\text{OC}_6\text{H}_5$ | Alkyl Aryl Ether | Perfume, Fragrance, Solvent | Yes |
| Toluene | $\text{C}_6\text{H}_5\text{CH}_3$ | Aromatic Hydrocarbon | Solvent, Ingredient in explosives | No |
| Acetophenone | $\text{C}_6\text{H}_5\text{COCH}_3$ | Ketone | Fragrance ingredient, Solvent | No (Formula doesn't match) |
| Aniline | $\text{C}_6\text{H}_5\text{NH}_2$ | Amine | Dyes, Pharmaceuticals | No (Formula and odor don't match) |
Additional Information on Anisole and Ethers
Anisole is a simple aromatic ether. Ethers are organic compounds characterized by an oxygen atom connecting two alkyl or aryl groups (R-O-R'). Aromatic ethers, like Anisole, have at least one aryl group attached to the oxygen.
- Anisole is a colorless liquid with a sweet, anise-like smell.
- It is relatively stable and less reactive compared to alcohols or phenols.
- Anisole undergoes electrophilic aromatic substitution reactions on the benzene ring, similar to other activated aromatic compounds. The methoxy ($\text{OCH}_3$) group is an activating and ortho, para-directing group.
- Due to its pleasant smell and solvency, it finds applications in the chemical industry, particularly in the synthesis of other organic compounds and as a high-boiling point solvent.
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