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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: yuda5148 on September 01, 2011, 06:33:20 PM

Title: Organic Synthesis
Post by: yuda5148 on September 01, 2011, 06:33:20 PM

Hello people, we just finished a round of Organic synthsis today and it was the based of electrophilic and nucleophilic aromatic substitutions. i understand what's happens and why,but i don't know what elements would cause ortho para or meta directions. so if anyone could help me, what groups are in the periodic table have lone pairs of electrons or and rules of thumbs??

Thank You :D

Title: Re: Organic Synthesis
Post by: Honclbrif on September 01, 2011, 07:06:40 PM

I don't want to be rude, but if you're doing aromatic substitution and don't understand directing effects I really must recommend hitting the books. You're missing some fundamental concepts and this is a little bigger than help you can get off a forum. If you don't catch up its only going to go downhill from here.

Start with resonance and move on to aromatics.

Title: Re: Organic Synthesis
Post by: azmanam on September 01, 2011, 08:23:13 PM

start here:

http://www2.chemistry.msu.edu/faculty/reusch/VirtTxtJml/benzrx1.htm#benz1