| 11. | In the pentose, the carbon closest to the carbonyl group is labeled C-1.
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| 12. | Sweetness is often connected to aldehydes and ketones, which contain a carbonyl group.
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| 13. | The nucleophile approaches the carbon of the carbonyl group at the Burgi-Dunitz angle.
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| 14. | The thioacetals are useful in " umpolung " of carbonyl groups.
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| 15. | All three enzymes activate a C H bond adjacent to a carbonyl group.
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| 16. | In this reaction an oxygen is regioselectively inserted near an adjacent carbonyl group.
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| 17. | The compound is used for transforming carbonyl groups to terminal alkenes.
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| 18. | The chelate is formed between the 2-carbonyl group of two separate lomefloxacin molecules ."
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| 19. | This stability would be lost by addition of a reagent to the carbonyl group.
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| 20. | With its free carbonyl group, it is a reducing sugar.
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