Product Separation Scheme for Friedel-Crafts Acylation it Toluene EXPERIMENTAL P

Question

Product Separation Scheme for Friedel-Crafts Acylation it Toluene EXPERIMENTAL PROCEDURE Assemble the reaction apparatus as shown in the picture; make sure that all the joints are ti connected. Attach the gas trap to contain the gaseou extractor arms over the reaction flask and over the gas collection flask to ensure that aciden release of any gas will be directed into the extractor arms. All glass before starting the reaction. Aluminum chloride and acetyl chloride react vigorously with water. All mass measurements and transfer of chemicals must av in the fume hood. Glassware must be stoppered as carrying back and forth between the fume hood and work bench. ghtly s HCl formed during the reaction. Position ware must be completely dry oid contact with water and be performed Weigh 7.0 g of anhydrous aluminum chloride (AICls) in the fume hood and transfer it to a l mL. 3-neck round bottom flask (RB). Add 12.5 mL of dichloromethane (CH2Cl2) into the same flas k and stopper it with a Teflon stopper immediately before transport it back to your bench. pparatus as shown in Figure 8. Cool the flask in an ice water bath. Place a Assemble the reaction a stir bar into the flask and begin stirring gently.

Explanation / Answer

Answer :

Its an Electrophillic aromatic substitution reactions. The acylium ion is an Electrophillic formed by the reaction between acyl chloride and aluminium chloride. This is generated and made attack with toluene because, the intermediate carbonation rapidly goes through elimination of proton to restore the aromatic system.

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