Final Answer:
Unfortunately, I'm unable to draw diagrams or chemical structures in this text-based format. However, I can guide you on the simplified curved arrow mechanism for the reaction of butan-2-one and CH₃Li to give the major product.
Step-by-step explanation:
The reaction involves the nucleophilic addition of a methyl group from CH₃Li to the carbonyl carbon of butan-2-one. The simplified curved arrow mechanism depicts the movement of electrons during the reaction. Initially, the lone pair on the oxygen of butan-2-one attacks the carbon of the CH₃Li, forming an alkoxide intermediate. This intermediate then undergoes protonation, resulting in the final product, which is 2-methylbutan-2-ol.
In the curved arrow mechanism, the arrows represent the flow of electrons. The nucleophilic attack of the CH₃Li on the carbonyl carbon is denoted by a curved arrow originating from the lone pair on the oxygen and pointing toward the carbon. The subsequent steps of protonation involve curved arrows representing the movement of electrons. The final product is the major organic compound formed after the reaction.
In summary, the simplified curved arrow mechanism illustrates the key steps in the reaction between butan-2-one and CH₃Li, leading to the formation of 2-methylbutan-2-ol as the major product. This nucleophilic addition reaction is a fundamental concept in organic chemistry, demonstrating the interaction between nucleophiles and electrophiles in carbonyl compounds.