In the reactions below, there is a main reaction step followed by one or more workup steps (which aced). Briefly explain the purpose of the bold-faced workup step in both cases, based on your e carrying out this reaction (or a similar reaction) in the lab. (MTBE= methyl tert-butyl ether) но excess CH;CO,H co,H 2. Н,о, heat co,H By means of an equation explain briefly what the purpose of step 2 in the work-up (shown in bold- face) was in the synthesis of aspirin. он 1. NaOCI (bleach) CH,CN/CH,CO,H 2. extract with MTBE b) H3CO" H3CO 3. Wash the MTBE extract with aq. K,Co, 4. Wash the MTBE layer with sat. NaCl soln. 5. dry over MgSO4, and rotovap MTBE Explain what the purpose of Step 3 (shown in bold-face) was in the work-up.
Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
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