Re: ORGLIST: Glucopyranose

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From: Jacob Zabicky (zabicky$##$bgumail.bgu.ac.il)
Date: Mon Nov 06 2000 - 06:21:40 EST


Hello Sharon,

Without totally abandoning the polarography idea, one can refine the
technique using circular dichroism and optical rotatory dispersion. On
going from one of the forms to the other, say alpha to beta, you should be
able to see a buildup of the aldehydic form. The kinetics of this buildup
in both directions should be very helpful in clarifying the mechanism of
the mutarotation process.

Hopefully one gets enough aldehyde for this method to be effective.

Jacob

At 11:26 6/11/0, Sharon Stone-Elander wrote:
>Hello Jacob,
>Thanks. I should have been more specific. I was thinking of other
>spectroscopic techniques. Any ideas?-Sharon
>
>
>>Hello Sharon,
>>
>>Yes, of course, its classical: rotation angle of polarized light, measured
>>with a polarimeter. The term mutarotation has to do with the observation of
>>a changing angle when dissolving one of the forms in water, to get the
>>equilibrium mixture.
>>
>>All the best,
>>
>>Jacob
>>

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