Aluminum chlonde

Alkyl halides by themselves are insufficiently electrophilic to react with benzene Aluminum chloride serves as a Lewis acid catalyst to enhance the electrophihcity of the alkylating agent With tertiary and secondary alkyl halides the addition of aluminum chlonde leads to the formation of carbocations which then attack the aromatic ring... 

Reaction of hexamethylbenzene with methyl chloride and aluminum chlonde gave a salt A which on being treated with aqueous sodium bicarbonate solution yielded compound B Suggest a mechanism for the conversion of hexamethylbenzene to B by correctly infemng the structure of A... 

Friedel-Crafts acylation (Section 12 7) An electrophilic aro matic substitution in which an aromatic compound reacts with an acyl chloride or a carboxylic acid anhydride in the presence of aluminum chlonde An acyl group becomes bonded to the nng... 

Fries rearrangement (Section 24 9) Aluminum chlonde promoted rearrangement of an aryl ester to a ring acylated denvative of phenol... 

Fluorides with fluorine-phosphorus bonds also react with Lewis acids tert-Butylpentafluorocyclotriphosphazenes are arylated in the presence of aluminum chlonde [26] (equation 18)... 

Acetophenones can be obtained by various routes such as by reacting acetic anhydride with the substituted benzene (Shirley-PREPARATION OF ORGANIC INTERMEDIATES, 1951, pg. 190) and may then be isomerized, if necessary, with aluminum chlonde (JCS 232(1944)). 

Aluminum chlonde [7446-70-0], 56, 28 Aluminum oxide [1344-28-1], 57, 97 AMMONIUM ACETATE, (2-PHENYL-l-AZIRIDINYL)-, 55, 114 Ammonium hexanitrocerate(IV), 55, 43... 

Mmy fluonnated aromatic compounds are alkylated with alkyl halides under Fnedel-Crafts conditions For example, the intramolecular alkylation of 3-fluoro-A-(chloroace-tyl)amhne with aluminum chlonde gives 6-fluorooxmdole [5] (equation 5) Similarly, 3 -chloro-4-fluoropropiophenone affords 5-fluoroindanone [6] (equation 6)... 

Vinyl and phenyl tnfluoromethyl groups are reactive m the presence of aluminum chloride [10 Replacement of fluorine by chlorine often occurs Polyfluori-nated tnfluoromethylbenzenes form reactive a,a-difluorobenzyl cations in antimony pentafluoride [77] 1 Phenylperfluoropropene cyclizes in aluminum chlonde to afford 1,1,3-trichloro 2 fluoromdene [10] (equation 10) The reaction IS hypothesized to proceed via an allylic carbocation, whose fluonde atoms undergo halogen exchange... 

An efficient catalyst for thermal isomenzations of halofluorocarbons [6, 7, 8, 9] IS prepared by treatment of alumina with dichlorodifluoromethane at 200-300 C [9] or aluminum chlonde with chlorofluorocarbons in the presence of metals [10] or palladium on alumina [11] These catalysts are far more efficient than aluminum halides themselves (equations 1 and 2)... 

Both phosgene and carbon monoxide were identified in IR spectra of gases generated from an equimolar mixture of oxalyl chloride and aluminum chlonde at room temperature. 

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