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Oh Grignard, the Beautiful
(to the tune of America the Beautiful) The carbonyl is polarized;
The carbon end is plus.
A nucleophile will thus attack
The carbon nucleus.
A Grignard yields an alcohol
Of types there are but three.
It forms a bond to correspond
From C to shining C. A secondary's synthesis
Requires an aldehyde.
For tertiary, a carbanion
And ketone may collide.
And Grignards add formaldehyde,
The product's primary.
They stick like glue to CO2
Join C to lonely C. Glory, Glory, It's Wolff-Kischner
(to the tune of "The Battle Hymn of the Republic") Take a ketone carbonyl and then react with hydrazine.
It forms a hydrazone, of course, and water leaves the scene.
An NH from the NH2, hydroxide will attack.
Resonance occurs and then the carbon grabs H back. Glory, Glory, It's Wolff-Kischner!
Glory, Glory, It's Wolff-Kischner!
Glory, Glory, It's Wolff-Kischner!
Reduce the carbonyl and then the side-chain now is plain. Hydroxide base is still present, it steals the last H plus.
Now add a little heat, the N2 leaves without a fuss.
The carbon gets a hydrogen producing an alkane.
Now the carbon chain is plain. Glory, Glory, It's Wolff-Kischner!
Glory, Glory, It's Wolff-Kischner!
Glory, Glory, It's Wolff-Kischner!
Reduce the carbonyl and then the side-chain now is plain. Oh, My Ketone!
(to the tune of "Oh, My Darling Clementine")
Oh, my ketone! Oh, my ketone!
And my primary amine.
You reacted, lost some water and
You formed a new imine.
Now the lone pair on the N then
Bonds with carbonyl C.
Pi electrons go to O, a
Proton shifts fast as can be.
Now the O is feeling greedy
Grabs an H from OH3.
Free electrons from the N then
Form a pi bond, water leaves.
Now the N is protonated
And a plus charge can be seen.
So the water yanks the H off
And we've formed a new imine.
Oh, my ketone! Oh, my ketone!
And my primary amine.
You reacted, lost some water and
You formed a new imine.
The Aldol Reaction
(to the tune of the Hokey-Pokey)
You put a strong base in,
It takes the alpha-H out:
This forms an enolate.
That's what this carbonyl's about.
The enolate will resonate,
The charge is shared by O.
That's what aldol's about.
The enolate attacks
Another carbonyl about.
A new bonds forms;
It's really neat without a doubt.
A beta-hydroxycarbonyl is the result.
That's what aldol's about. info is from the follwing link:::::::::: www.departments.bucknell.edu/chemistry/courses/chem211/songs/index.html DO COMMENT AND RATE IT.................... 
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(posted on 27 Oct 2008 16:53:32 IST)
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SORRY FOR THE ALLIGNMENT........... :D |
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(posted on 27 Oct 2008 16:59:35 IST)
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good |
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(posted on 27 Oct 2008 18:22:45 IST)
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keep it up...!!! |
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(posted on 27 Oct 2008 18:32:48 IST)
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wow... that's gr8.... great literary piece.. |
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(posted on 27 Oct 2008 18:37:41 IST)
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really nice pratu.....hope to hav som more of these!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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(posted on 27 Oct 2008 19:06:59 IST)
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(posted on 28 Oct 2008 07:53:00 IST)
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Hey good one da |
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(posted on 28 Oct 2008 07:56:55 IST)
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gud one....dude |
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(posted on 28 Oct 2008 09:04:53 IST)
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lolz.......... |
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(posted on 28 Oct 2008 13:37:59 IST)
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cool n nice n a gd way to learn....... i appreciate ur effort to find this/write this urself........ |
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(posted on 28 Oct 2008 15:42:46 IST)
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gr8 piece of art with science |
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(posted on 29 Oct 2008 11:04:17 IST)
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gr8 job dude!!!!!!!!!!! |
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(posted on 30 Oct 2008 15:33:40 IST)
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HEY PRATU, YOUR ARTICLES ARE ALWAYS VERY GOOD.... KEEP IT UP. |
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(posted on 30 Oct 2008 17:54:38 IST)
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thanxx to u all........................ :)......................I am glad dat I gave u all something worthful...................... :) |
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(posted on 30 Oct 2008 18:00:44 IST)
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@anuj.juneja.1................the link is given out in the article.......... :) |
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(posted on 31 Oct 2008 17:05:32 IST)
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cool |
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(posted on 31 Oct 2008 19:16:43 IST)
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thanxx.... :) |
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