Rev27 - Review of Chapter 27 Carbohydrates hemiacetal CH=O...

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Review of Chapter 27 Carbohydrates I. Recognize the names and relations (A) Which of the following is a "hemiacetal"? Answer:__________ (B) Which one is a "ketal"? (C) Which one is a "pyranoside" (pyranose with glycosidic bond)? (D) Which one is(are) a "furanose"? (E) Which one is " α -D-glucose"? (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 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 ? (What's the intermediate of this conversion, and what's it called?) HO O H OH H H H OH H OH HO MeI (excess), Ag 2 O ? MeOH, H + ? (What kind of isomers are these two called?
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Rev27 - Review of Chapter 27 Carbohydrates hemiacetal CH=O...

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