Condensation reactions glucose

In summary, condensation reactions between OH and H occur at C 1, 4, and 6 to form polysaccharides, but not at C 2 or 3. This is because these carbons are either not attached to an OH or H, or they are part of the ring structure. The provided websites discuss this topic in more detail.
  • #1
Cheman
235
1
Condensation reactions occur between the OH and H of C 1,4 and 6 to form polysaccharides - why do we not get reaction at C 2 or 3? ( 5 is obvious since it is not attached to H or OH )

Thanks. :smile:
 
Chemistry news on Phys.org
  • #2
What I mean is, why do we only get the end OH and H's reacting (eg - in the case of amolase in starch) or the ones on the C chain not in the ring ( as the case with glycogen) not the others?

Thanks.
 
  • #3
Cheman,

These sites might shed some light on the subject.

http://www.biotopics.co.uk/as/glucose2.html

http://www.bmb.psu.edu/courses/bmb401_spring2003/carbohydrates_2.pdf [Broken]

http://www.biologie.uni-hamburg.de/b-online/e16/16h.htm [Broken]

The pdf file discusses glycosidic bonds and looks useful.
 
Last edited by a moderator:

What is a condensation reaction?

A condensation reaction is a chemical reaction in which two molecules combine to form a larger molecule, with the simultaneous loss of a small molecule such as water or ammonia.

What is glucose?

Glucose is a simple sugar that is the primary source of energy for most living organisms. It is a monosaccharide and has the chemical formula C6H12O6.

How does a condensation reaction produce glucose?

A condensation reaction involving two glucose molecules results in the formation of a disaccharide called maltose. This reaction involves the removal of a water molecule, causing the two glucose molecules to bond together.

What is the role of enzymes in condensation reactions involving glucose?

Enzymes are catalysts that speed up the rate of chemical reactions. In condensation reactions involving glucose, enzymes help to break down larger molecules into smaller ones, and also facilitate the joining of smaller molecules to form larger ones.

What are some examples of condensation reactions involving glucose?

Some common examples of condensation reactions involving glucose include the formation of sucrose from glucose and fructose, the formation of lactose from glucose and galactose, and the formation of glycogen from glucose molecules.

Similar threads

Replies
4
Views
1K
Replies
6
Views
1K
  • Precalculus Mathematics Homework Help
Replies
6
Views
616
Replies
2
Views
954
Replies
2
Views
2K
Replies
10
Views
949
Replies
9
Views
1K
Replies
2
Views
2K
Back
Top