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Topic: beta-d-glucopyranose  (Read 6211 times)

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Offline mehdi71000

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beta-d-glucopyranose
« on: February 03, 2007, 11:55:43 AM »
hi guys ;D
is there any way to remove the hydrogens in the mulucule below? if yes what would happen to the structurein a hydrogen free inviroment?

Offline alphahydroxy

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Re: beta-d-glucopyranose
« Reply #1 on: February 03, 2007, 01:30:37 PM »
Maybe  I'm being stupid, but I don't quite follow you...

You want to remove the hydrogens? Do you mean deprotonate the alcohols, or oxidise them? Do you want to remove them from the carbons?

What's a "hydrogen free enviroment"? you mean an aprotic solvent or something?

Offline mehdi71000

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Re: beta-d-glucopyranose
« Reply #2 on: February 03, 2007, 05:52:15 PM »
i want to remove all the hydrogens  bonding with the carbons or oxigens. i asume this molucule in its state has hydrogens bonding with its carbons. forget the hydogen free environment becouse i thought if  removing the hydrogens they will bond with more hydrogens. perhaps im wrong

Offline alphahydroxy

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Re: beta-d-glucopyranose
« Reply #3 on: February 12, 2007, 06:20:42 AM »
I still don't quite get what you're wanting to do. I guess you could deprotonate the hydroxyl groups, or oxidise them up to the carbonyls, but removing the protons from the carbons would necessarily result in an impossibly strained cyclic system - i.e. not going to happen...

what exactly are you trying to make?


oh yeah, and please use chemdraw or something if you want to show structures - photo's of models really aren't very helpful!

Offline AWK

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Re: beta-d-glucopyranose
« Reply #4 on: February 12, 2007, 09:26:04 AM »
Removing hydrogen from organic molecule is equivalent to its oxidation, ie water is formed from hydrohen atoms.
Molecules contain (3 or more) carbonyl groups close togeder are rather unstable.
AWK

Offline mehdi71000

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Re: beta-d-glucopyranose
« Reply #5 on: February 13, 2007, 12:54:06 PM »
thanks guys
i want to remove the hydrogens so there is no hydrogen in the structure. by doing this i assume the oxygens of the molecule will bond with other oxygens . and the carbon with a free bond will bond with other carbons so the molecules will become attached like a huge structure. is this true?
i had this question from my teacher. he wants me to remove the hydrogens first then on a separate proses remove the oxygens. Ive been at this for 3 months now but no result. thanks guys for the help.

you mentioned deprotonate the hydroxyl groups how is this done?

Offline AWK

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Re: beta-d-glucopyranose
« Reply #6 on: February 15, 2007, 10:32:41 AM »
This is a very odd problem
AWK

Offline mehdi71000

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Re: beta-d-glucopyranose
« Reply #7 on: February 16, 2007, 12:05:18 PM »
any ideas awk?
is there a chemical that can bond in this molucule with the hydrogen and remove it from bonding with the carbons and oxigens?

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