Ans Rev27 - Review of Chapter 27 I. Recognize the names and...

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Review of Chapter 27 I. Recognize the names and relations (A) Which of the following is a "hemiacetal"? Answer:____ B ____ (B) Which one is a "ketal"? A (C) Which one is a "pyranoside" (pyranose with glycosidic bond)? C (D) Which one is(are) a "furanose"? A, D (E) Which one is " α -D-glucose"? B (F) Circle one of the following Fischer projections that corresponds to the cyclic pyranose: II. Reactions: CH=O CH OH OR CH OR OR CH=O CH OH O CH OR O OH O OH O OR ROH, H + hemiacetal acetal (glycoside) OH CH 2 OH OH HO O OH O OH OH OH CH 2 OH O CH 2 OH OH OH OH B C OCH 2 CH 3 D CH 2 OH OCH 3 CH 2 OH OH HO O CH 2 OH A 'ketal' 'acetal' 'hemiketal' H CHO OH H HO H HO OH H CH 2 OH H CHO OH OH H H HO OH H CH 2 OH HO CHO H OH H OH H OH H CH 2 OH HO CHO H H OH H OH H CH 2 OH O OH OH OH OH CH 2 OH A BC D HO O H OH H H OH OH H H HO HO O H OH H H H OH H OH HO H CHO OH OH H OH H OH H CH 2 OH CH 2 OH O OH H OH H OH H CH 2 OH 'enediol' rearrangement HO O H OH H H H OH H OH HO MeI (excess), Ag 2 O MeOH, H + 'mutarotaion' of anomers H 2 O OH - MeO O H OMe H H H OMe H OMe OMe HO O H OH H H OH H OMe HO α & β glycosides H OH H OH H OH H CH 2 OH OH H
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Which of the following is a reducing sugar?
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This note was uploaded on 06/11/2010 for the course CEM CEM252 taught by Professor ? during the Summer '10 term at Michigan State University.

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Ans Rev27 - Review of Chapter 27 I. Recognize the names and...

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