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Topic: different structures for the following reactions  (Read 2633 times)

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Offline Molly71

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different structures for the following reactions
« on: January 05, 2013, 06:06:33 AM »
suggest structures for the following A,B,C,D :
(question is attached)

thanks (:


Offline sjb

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Re: different structures for the following reactions
« Reply #1 on: January 05, 2013, 06:25:27 AM »
http://www.chemicalforums.com/index.php?topic=57.0 - Forum rules require that you try and give some thought to your question before posting. Do you recognise any of the reagents and what they may do?

Offline Molly71

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Re: different structures for the following reactions
« Reply #2 on: January 05, 2013, 07:01:59 AM »
Oh im sorry!
I thinks ive managed A and B, Im really not sure though..
I find the subject very difficult, so I need a bit of help and explenation..  :-\

Offline discodermolide

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Re: different structures for the following reactions
« Reply #3 on: January 05, 2013, 07:27:45 AM »
Have a look here http://en.wikipedia.org/wiki/Williamson_ether_synthesis and see if you can relate it to your problem.
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Offline Molly71

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Re: different structures for the following reactions
« Reply #4 on: January 05, 2013, 09:12:56 AM »
it helps a bit I guess.. but there is still too much that i dont understand..
can't figure out this problem..Im quite new in the chemistry buisness..  :-\  ::)

Offline discodermolide

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Re: different structures for the following reactions
« Reply #5 on: January 05, 2013, 10:17:57 AM »
Why can't you apply what's on that link to your problem.
Hint: what is the reaction of sodium metal with alcohols?
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Offline Babcock_Hall

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Re: different structures for the following reactions
« Reply #6 on: January 05, 2013, 11:05:05 AM »
Na seems like an odd choice (although it should work).  Are you sure that you copied down the problem correctly?

Offline Molly71

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Re: different structures for the following reactions
« Reply #7 on: January 05, 2013, 12:15:00 PM »
Ok! I think I've managed C as well! thanks alot! (;

I still don't have D.. im thinking ch3 will bond and I is a leaving group?..

And I'm sure I coppied the question correctly! it's Na for sure  ::)

Offline Babcock_Hall

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Re: different structures for the following reactions
« Reply #8 on: January 05, 2013, 12:24:12 PM »
Iodide ion is a great leaving group, so you seem to be on safe ground there.  What do you propose as the nucleophile?

Offline Molly71

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Re: different structures for the following reactions
« Reply #9 on: January 05, 2013, 12:30:49 PM »
mmm maybe I got it wrong then.. C is not the nucleophile?


Offline Babcock_Hall

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Re: different structures for the following reactions
« Reply #10 on: January 05, 2013, 03:30:15 PM »
The carbon atom of CH3I is a plausible electrophilic center.  Nucleophiles need at least one lone pair of electrons.

Offline discodermolide

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Re: different structures for the following reactions
« Reply #11 on: January 05, 2013, 04:54:33 PM »
mmm maybe I got it wrong then.. C is not the nucleophile?

Have another look at the link I posted and see if you can determine what the nucleophile is.
It shows you in the first reaction.
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Offline Molly71

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Re: different structures for the following reactions
« Reply #12 on: January 06, 2013, 12:04:48 PM »
Yap! I think I got it now (:
Thanks alot everybody!

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