In toluene synthesis by Friedel Craft, the reactants in addition to anhydrous AlCl3 are:
Correct answer: C. C6H6 + CH3Cl
- A. C6H6 + CH4
- B. C6H5Cl
- C. C6H6 + CH3Cl
- D. C6H5Cl + CH4
Explanation
In the Friedel-Crafts synthesis of toluene, the reactants in addition to anhydrous AlCl3 are benzene (C6H6) and methyl chloride (CH3Cl). The correct option is d.Explanation:The Friedel-Crafts synthesis of toluene involves a reaction named Friedel-Crafts alkylation, which was discovered by Charles Friedel and James Crafts in 1877. This particular reaction allows for the formation of alkyl benzenes from benzene and an alkyl halide in the presence of anhydrous aluminum chloride (AlCl3) as a catalyst.However, it's worth noting that this reaction can sometimes lead to polyalkylation due to the produced alkyl groups being electron-donating, making the products more reactive towards electrophilic attack than the starting materials.For the synthesis of toluene, the correct reactants in addition to anhydrous AlCl3 are benzene (C6H6) and methyl chloride (CH3Cl). So, the correct answer is . C6H6+CH3Cl.
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About Benzene and Aromatic Compounds
Benzene has a planar ring of delocalised π electrons, giving aromatic stability and equal carbon-carbon bond lengths. The topic covers resonance, electrophilic substitution reactions such as nitration, halogenation, sulphonation and Friedel-Crafts reactions, along with substituent effects and the distinction between substitution in benzene and addition in ordinary alkenes.
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