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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: rleung on January 22, 2006, 02:02:26 PM

Title: reaction of excess benzene, propene, and HF
Post by: rleung on January 22, 2006, 02:02:26 PM

Hi,

I am unsure of how the reaction of excess benzene, propene, and HF will lead to 2-phenylpropane.  It seems like it is going through some sort of Friedel-Crafts alkylation, but I do not see how.  

Ryan

Title: Re:reaction of excess benzene, propene, and HF
Post by: Yggdrasil on January 22, 2006, 02:40:32 PM

The HF will protonate the propene to form a secondary carbocation, which is an electrophile capable of reacting with benzene to form 2-phenylpropane.

Title: Re:reaction of excess benzene, propene, and HF
Post by: rleung on January 29, 2006, 08:51:33 PM

Thanks so much.  I appreciate it.

Title: Re:reaction of excess benzene, propene, and HF
Post by: forislam20 on January 30, 2006, 02:37:47 AM

there is a point here u must be aware of
why is the adddition reaction to propene doesn't occur?
i found two reasons can u? :D!!!!!!!!!!!!!!