3677-79-0

Upstream product

• 123-91-1 1,4-dioxane 
• 1733-63-7 1,2,2-triphenylethan-1-one 
• 2999-74-8 dimethylmagnesium 
• 917-64-6 methyl magnesium iodide 
• 781-35-1 1,1-diphenylacetone 
• 591-51-5 phenyllithium 
• 1871-76-7 diphenylacetic acid chloride 

Downstream Products

• 3677-70-1 1,1,2-triphenylprop-1-ene 
• 94871-36-0 1,1,2-Triphenylpropane 

Relevant academic research and scientific papers

Friedel-Crafts alkylation of benzene with 1,2-diphenyl-2-propanol, 1-chloro-2,3-diphenylpropane and 2-methyl-1-phenyl-2-butanol

The alkylation of benzene with 1,2-diphenyl-2-propanol (1) using AlCl 3/CH3NO2 catalyst gave a mixture of 1,2,2- (4) and 1,1,2-triphenylpropane (5) as product alkylates. With 85% H 2SO4 catalyst, the product consisted of E-1,2-diphenylpropene (6) after 2 h of a mixture of 5 and 6 after 18 h. Similar alkylation of benzene with 1-chloro-2,3-diphenylpropane (2) using AlCl 3 catalyst gave a mixture consisting of 4, 5 and 6. Finally, alkylation of benzene with 2-methyl-1-phenyl-2-butanol (3) using AlCl 3/CH3NO2 gave 2-methyl-1,1-diphenylbutane (10) as sole product alkylate. The identities of the products were confirmed spectroscopically and by comparison with unequivocally prepared samples. Mechanisms are proposed to rationalise the observed results.