CHEM 2312 Midterm: CHEM 2312 GT Examp3iii
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E3 practice iii: (32 points) circle the letter on the right which corresponds to the answer to each question. H2so4 (iv) which of the following best describes the mechanism for the formation of an imine from the reaction between an aldehyde and a 1 amine (rnh2): addition followed by an sn2 reaction. M. electrophilic addition followed by an sn1 reaction. Oh: h2/pt, lialh4, nabh4, na2cr2o7 (vii) which of the following reactions is catalyzed upon addition of an acid to the reaction mixture, addition of an organolithium reagent to a ketone, reduction of an ester with lialh4. Hydrolysis of a hemiacetal upon treatment with water. Cc. reduction of a carboxylic acid with lialh4 dd. reduction of an aldehyde with nabh4. Ff. treatment of a grignard reagent with ethylene oxide. Ff: (38 points) (a) provide the structure of the major organic products obtained from the first four reactions, and the synthetic intermediate and product for the two-step scheme.
