How do you eliminate the Lewis acid in a Friedel-Craft reaction? Can AlCl_3 reac

Question

How do you eliminate the Lewis acid in a Friedel-Craft reaction? Can AlCl_3 react J water? Which kind of product is prepared using the Williamson's reaction? What is the role of NaOH in the Williamson's reaction? Draw the general mechanism of the williamson's reaction Which will react faster, sodium methoxide or sodium tert-butoxide? What kind of salt is formed when you treat an alkyl halide with thiourea? Draw the structure of thiourea. What is the use of the press in IR? How would you recognize alcohols in IR? Is Friedel-Craft an aromatic addition reaction? Does an alkyl substitution in the ring favor the Friedel-Craft reaction? Why AlCl_3 cannot be weight using a balance?

Explanation / Answer

Answers:

14) Yes. Aluminium chloride can react with water to form aluminum oxide and hydrochloric acid. The reaction is exothermic when there is much more AlCl3 than water. The balanced reaction equation is,

2AlCl3 + 3H2O Gives Al2O3 + 6HCl

15) Ethers are the main product which is prepared by Williamson reaction. It is widely used in both laboratory and industrial scale. By this reaction method, we can easily prepare both symmetrical and asymmetrical ethers.

16) From the previous answer, we know that williamson reaction is mostly used for the preparation of Ether, so the main role of NaOH is also the same. It is used to convert an alcohol and an alkyl halide to an ether.

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