thaibrawler

hmm blike could probably heelp. ok the question is to transform benzene into a fused ring. I dont know how to name the product but this is the reaction to obtain the product. Starting from benzne A/add maleic anhydride1/XS ALCL3 heat, 2/water B/reduce via Zn(Hg) HCL and heat C/ PCL5 D/ 1/XS ALCL3 2/ water(this creates the fused ring) My question is the mechanism. For A>B I have the electron from the benzene attack one of the carbonyl from maleic anhydirde whcih gives the o a (-) charge with a alcl3 attached to it. No resonance thus far right? The O takes a proton form the water and you are left with OH. Now to get form C->D the cl attacks the alcl3 and the alcl3 is then left leaving an acylium ion whcih resonates. the benzene pi e- attacks it leaving a (+) charge in the benzene ring.<The cl attacks the h to reform the double bond> or does the h20 attacks the h to form h30? then the reaction is finish. the product should have a benzene ring on one end and directly fused to it another benzene with a c=o attached. thanks

whts the actual difference between sunblock or screen good job on the notes there blike

now

bat

no comment .....but you dont ahppen to remember the chemical do you? ^__^' ~.^

I was told by my teacher that suncreen has no point. It really doesnt protect you. He said it was for money and such. I dont remember the chemical he mentioned that said it was harmful, when I think of it Ill add it. So now my point is it it really true? I think that one whould not need sunscreen because if your body is feeling hot, and you are turning red isnt it telling you to go home.

love

I never noticed a news page, sorry about htat ^__^ Yes, Id have to agree on what you say faflone. But, what do you mean black market? its not everyday someone can just clone(not clone bacteria wise) an embryo.

Not sure if this has been posted but. http://story.news.yahoo.com/news?tmpl=story&cid=624&ncid=751&e=1&u=/ap/20040212/ap_on_sc/therapeutic_cloning