Chapter 21: Q27E (page 726)
Name the following compounds:
a.
b.
Short Answer
Name of the following two compounds can be given as:
Chapter 21: Q27E (page 726)
Name the following compounds:
a.
b.
Name of the following two compounds can be given as:
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Butoxyycarbony azide, a reagent used in protein synthesis, is prepared by treating tert-butoxy carbonyl chloride with sodium azide. propose a pose mechanism for this reaction
One step in the gluconeogenesis pathway for the biosynthesis of glucose is the partial reduction of 3-phosphoglycerate to give glyceraldehyde 3-phosphate. The process occurs by phosphorylation with ATP to give 1,3-bisphosphoglycerate, reaction with a thiol group on the enzyme to give an enzyme-bound thioester, and reduction with NADH. Suggest mechanisms for all three reactions.
21-39 Succinic anhydride yields the cyclic imide succinimide when heated with ammonium chloride at 200°C. Propose a mechanism for this reaction. Why do you suppose such a high reaction temperature is required?
21-75 One frequently used method for preparing methyl esters is by reactionof carboxylic acids with diazomethane,
The reaction occurs in two steps: (1) protonation of diazomethane bythe carboxylic acid to yield methyldiazonium ion,, plus a carboxylate ion; and (2) reaction of the carboxylate ion with .
(a) Draw two resonance structures of diazomethane, and account forstep 1.
(b) What kind of reaction occurs in step 2?
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