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Advanced Organic Chemistry: Reaction mechanisms: Aromatic electrophilic substitution acylation
Part 10.8 Aromatic Hydrocarbons - Arenes - Electrophilic substitution reactions - Friedel-Crafts ACYLATION
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Index of GCSE level oil and basic organic chemistry notes Part 10.8 Aromatic Hydrocarbons - Arenes - Electrophilic substitution reactions - ACYLATION
Part 10.8 AROMATIC HYDROCARBONS (Arenes) 10.8.1 Introduction to the reactivity of aromatic compounds e.g. the arenes benzene and methyl benzene Why do aromatic hydrocarbon molecules primarily react via electrophilic substitution reaction?
10.8.5 The electrophilic substitution of an arene - acylation mechanism (Friedel-Crafts reaction) Organic synthesis of aromatic ketones by reaction of acid/acyl chlorides with benzene/methylbenzene
Benzene is refluxed with an acid chloride and anhydrous aluminium chloride catalyst and a ketone is formed.
mechanism 25 - electrophilic substitution by an acyl group in the benzene ring
for R = CH3, methylbenzene: C6H5CH3 + R'COCl ==> R'COC6H4CH3 + HCl
FURTHER COMMENTS
10.8.7 The orientation of products in aromatic electrophilic substitution reactions
keywords phrases: reaction conditions formula intermediates organic chemistry reaction mechanisms electrophilic substitution benzene methylbenzene C6H6 + R'COCl ==> C6H5COR' + HCl If ethanoyl chloride, CH3COCl, was used (R=CH3-), benzene forms phenylethanone, C6H5-CO-CH3 RCO+ R = CH3, acylation of benzene methylbenzene : C6H5CH3 + R'COCl ==> R'COC6H4CH3 + HCl COMPLETE MECHANISM and Organic Synthesis INDEX (so far!)
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