CH,OH H-C-OH 0-C-H H-C-OH 0-H 4-C-OH CH OH D-GLcore Cyclization of linear aldehyde and ketone structures CROR C=O 坠州 CH,OH Ho-C-H H-C-OR 0 H-C-OH CR OH 刀-而c%re
Cyclization of linear aldehyde and ketone structures
Chair conformation Ring plane equatorial axial Interaction in case of space axial consuming side chains> axial Boat conformation
axial equatorial Ring plane Chair conformation axial axial Interaction in case of space consuming side chains Boat conformation
H HO CH2OH H H HO HO H OH H B-D-Glucose
OH 0 plane HO H Mutarotation H Equilibrium formation between both anomers in solution 36%a-Form und 64%B-Form plane →lal20=+52,78 *一OH D 0,1% β-D-Glucose [a180=+112,20 【a0 rotation angle c at 20C
a-D-Glucose OH b-D-Glucose C HC CH HC OH HO OH O H HC H2C OH OH D-Glucose ( 0̴,1%) [a] D 20 = + 18,7° [a] D 20 = + 112,2° [a] D 20 = rotation angle a at 20°C Mutarotation Equilibrium formation between both anomers in solution 36% a-Form und 64% b-Form [a] D 20 = + 52,7° plane plane
H2C-OH HC-OH Suger alcohol HC-OH Mannitol HC-OH Reduction of the aldehyde HC-OH H2C-OH OH Gluconic acid HO HO COOH Sugar acids OH Oxidation of the aldehyde HOOC Glucuronic acid HO HO OH OH OH 2-Aminoglucose Amino sugar HO- HO OH Amidation of an alcohol group NH3
Suger alcohol Reduction of the aldehyde H2C HC HC HC HC H2C OH OH OH OH OH OH Mannitol COOH OH Gluconic acid Glucuronic acid Sugar acids Oxidation of the aldehyde NH3 OH Amino sugar Amidation of an alcohol group 2-Aminoglucose