What is the Nomenclature of Glucose Isomers?

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Discussion Overview

The discussion revolves around the nomenclature of glucose isomers, particularly focusing on a proposed isomer with a cyclohexane base and various hydroxyl groups. Participants explore the naming conventions and classifications of these compounds, including their potential existence and relevance in biological contexts.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant proposes the name "1,2,3,4,5,6-hydroxycyclohexane" for a glucose isomer with a cyclohexane base, expressing uncertainty about its proper nomenclature.
  • Another participant suggests that the full name could be "cyclohex-1,2,3,4,5,6-hexaol," but questions whether it could be shortened to "cyclohex-hexaol."
  • A third participant identifies the common name for the compound as "meso-inositol," noting its classification as a cyclitol.
  • One participant raises a question about the dependence of the "meso" designation on the stereochemistry of the hydroxy groups.
  • Another participant acknowledges the importance of the isomer in the pharmaceutical industry and speculates about its potential chiral isomers.
  • Further inquiries are made about the proper names for other related compounds, such as "hexahydroxycyclohexene" and "dodecahydroxycyclohexane," along with concerns about the stability of these compounds.
  • One participant shares information about the biological significance of inositol, mentioning its roles and potential deficiencies in animals.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the proper nomenclature and existence of the proposed isomers. There is no consensus on the naming conventions or the stability of the compounds discussed.

Contextual Notes

Participants note limitations in their understanding of the stereochemistry and potential biological implications of the compounds, as well as the need for clarity in nomenclature.

Who May Find This Useful

This discussion may be of interest to those studying organic chemistry, particularly in the context of carbohydrate chemistry and nomenclature, as well as individuals exploring the biological roles of cyclitols.

bomba923
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Nomeclature of 'abnormal glucose isomer

Now this isomer may not really exist (it might...not sure),
but what is 1,2,3,4,5,6-hydroxycyclohexane more properly called?

*(that's how I named it--an isomer with molecular formula [tex]C_6 H_{12} O_6[/tex]---with a cyclohexane base, just replace one hydrogen at each carbon with a hydroxyl group. But...I'm pretty sure there is a better, shorter, more knowledgeable name for it :frown: )
 
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bomba923 said:
Now this isomer may not really exist (it might...not sure),
but what is 1,2,3,4,5,6-hydroxycyclohexane more properly called?
Well, the full name would be cyclohex-1,2,3,4,5,6-hexaol because you put the hydroxy branch numbers in the centre (remember?) but I think, due to the hexa in the middle, that you could say it is cyclohex-hexaol but this might not be true.
 
The common name is meso-inositol (or simply inositol) and it belongs to a class known as cyclitols.
 
Wouldn't the "meso" part depend on the stereochemistry of the hydroxy groups?
 
Yes it would. I imagined the compound was the meso-compound as this isomer is very important in the pharmaceutical industry. It could as easily have been one of the chiral isomers, I guess.
 
Gokul43201 said:
Yes it would. I imagined the compound was the meso-compound as this isomer is very important in the pharmaceutical industry. It could as easily have been one of the chiral isomers, I guess.

Wow--I had no idea :bugeye:
I just thought this was any random glucose isomer :redface:

I was searching online--and it appears to a beneficial biological compound;

[PLAIN said:
http://www.independentliving.co.uk/vitamin4.html][/PLAIN]
Experimental deficiencies have been caused in animals: they led to hair loss, rashes, constipation, a reduction in growth rate and increase in congenital eye defects. There is no evidence linking human deficiency to such effects.

Although little is known about inositol's role in the body, it seems to be involved in various functions, including construction of cell membranes and lipoproteins in the plasma. It seems also to prevent fat accumulating in the liver and other organs, and is important for metabolising glucose.

*Also, what is the proper name for this compound, "hexahydroxycyclohexene," "cyclohex-1,2,3,4,5,6-enol"---basically a cyclohexene, with one hydroxyl group on each carbon? (what is the correct name?)
*And what is the proper name for this compound, "dodecahydroxycyclohexane"---basically a cyclohexane, with EverY hydrogen replaced with a hydroxyl group? (12 hydroxyl groups, two per carbon) (what is the correct/proper name?) and, would this compound be very Very unstable?

---or, can any direct me to a webpage on the nomenclature of cyclitols?
 
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