Question

Ch. 15 Carbohydrates 1) How many stereocenters are in: a) Glucose b) Fructose c) Galactose 2) Area-D-glucose and B-D-glucose anomers? Are they enantiomers? Explain 3) Draw Haworth structure of B-D-galactose and B-D-fructose. 4) Convert each Haworth projection to a Fisher projection

Answer 1

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@ 6 ② Glucose has 4 Stereocentrees freuctose has a sterees centrees Galactose has 4 stereo centres 27 X-D glucose and Bro glicose are anomeres. They are not enantiomers as they are not mircreare inages of each othere.

H 170 AS H n 04 noidh 6 H- C-0H HC-OH - H HO - TA & H- C-04 -6-H H-C-OH H -Ć - Off Hoc-On 1 CH OH os SA CHO HODDIO p -D-glucos (X-D-glucose).i These a arce not enantiomers Streecture, p-D-galactose ( Haworeth CH, OH a OH Hol ☆ OH

애 애 서 에게 애 바 Haworeth) 애 HO -CH 1 0 애 Fischere preotection