
Borhwai C. answered 07/22/25
Expert One-on-One Tutoring for AP/IB Math and Chemistry Students
This answer is sadly going to be relatively late,
The first question is going to be a Grignard reagent reacting with methyl benzanoate; the partial positivity of the carbonyl carbon leaves it susceptible to nucleophilic attack via the nucleophilic carbon in the C-Mg bond; double addition will occur on that carbon resulting in a tertiary alcohol; 2-phenylpropan-2-ol
The second question is going to be DIBAL-H reduction with H3O+ solvent, so ester -> aldehyde where the carbonyl oxygen coordinates to the aluminum and creates a hemiacetal intermediate, resulting in 2-methyl-3-phenylpropanal
The third question is going to be a reaction that involves making amides from acyl chlorides(in this case, acetyl chloride), which is a generally a simple substitution of the chloro-group, so the result is acetamide
The fourth question is a simple Fisher esterification, where the carboxylic acid is protonated by the solvent, making the C-OH more polarized, leaving it susceptible to nucleophilic attack by the alcohol; the result of this reaction is 2-ethyl methyl cyclopentanoate
The fifth question involves another reduction reaction using LiAlH4 in acidic workup, which is a strong reducing agent, turning ethyl benzanoate into phenol
The sixth question involves an acid anhydride reacting with alcohol with pyriridine solvent, which is meant to deprotonate the intermediate after the anhydride is attacked at the carbonyl, then bond cleavage would occur; two products are formed, which are methanoic acid and a ethancyclopropyl methanoate
The seventh question is another reduction reaction using LiAlH4 in acidic workup, which is a strong reducing agent, turning methanamide to ethanamine
The eighth question is basic SOCl2 reaction in which the one of the chlorines with add onto the carbonyl oxygen after having Cl as a leaving group, then deprotonation occurs to relieve the positive charge of the oxygen in the intermediate; theCl- attacks the carbonyl carbon then more elimination occurs on SOCl2 forming an acid chloride