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Condensation reactions glucose

  1. Nov 26, 2004 #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:
  2. jcsd
  3. Nov 27, 2004 #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?

  4. Dec 5, 2004 #3


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    These sites might shed some light on the subject.


    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: May 1, 2017
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