b). Identify the products D, E and F from the reactions (i) - (iii) below, considering the u stereochemistry of the products where relevant (curved arrow mechanisms are not required). (i) Meno (ii) persone MeO 23 anouibuoo bus (iii) Odosla i Na, NH3 (1), -78 °C Thom Me BuOH NC bluofle divis Me it gainete Me est stalno obuloni N. Me et leggen etsingoigt ben Catalyst 8 (1 mol %) BH3, THF 2127 Na, NH3 (1), -78 °C then work-up ciclora of zomasih C-L staigong esbuloni 52001S1260201014 (4) sicaj El slams bis 1998UT siberq ont no gintasunads igno schemsiqyshue Ph Ph D E O -B 8 Me Onvesvitoslazoorstzs szogar (d) Fjud gor nass 10) Isiflo viunsti casi di obrode wo7 (quong much souborta edito amo

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A: answer is attached belowExplanation:

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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.