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- Amines are converted into alkenes by a two-step process called Hofmann elimination. SN2 reaction of the amine with an excess of CH3I in the first step yields an intermediate that undergoes E2 reaction when treated with silver oxide as base. Pentylamine, for example, yields 1-pentene. Propose a structure for the intermediate, and explain why it readily undergoes elimination.A chemist in need of 2,2-dimethylpentanoic acid decided to synthesize some by reaction of 2-chloro-2-methylpentane with NaCN, followed by hydrolysis of the product. After the reaction sequence was carried out, however, none of the desired product could be found. What do you suppose went wrong?Treatment of 1-aminoadamantane, C10H17N, with methyl 2,4-dibromobutanoate in the presence of a nonnucleophilic base, R3N, involves two successive SN2 reactions and gives compound A. Propose a structural formula for compound A.
- Phenols generally have lower pKa’s than aliphatic alcohols because of resonance stabilization with the aromatic ring. Draw all of the resonance contributors for the phenolate ions below. Make note of how the substituents either stabilize or destabilize the system.One step in the urea cycle for ridding the body of ammonia is the conversion of argininosuccinate to the amino acid arginine plus fumarate. Propose a mechanism for the reaction, and show the structure of arginine.The following scheme shows the retrosynthetic analysis of 1-isopentylaziridine to form series of intermediates via Functional Group Inversion (FGI). Choose the correct reagents of N-S for the respective conversion
- Acid-catalyzed hydrolysis of HOCH2CH2C(CH3)2CN forms compound A (C6H10O2). A shows a strong peak in its IR spectrum at 1770 cm-1 and the following signals in its 1H NMR spectrum: 1.27 (singlet, 6 H), 2.12 (triplet, 2 H), and 4.26 (triplet, 2 H) ppm. Draw the structure for A and give a stepwise mechanism that accounts for its formation.Starting with 3-nitroaniline, show how to prepare the following compounds. Q.) 3-BromoanilineI need help to find the mechansim for Preparation of Cyclohexanone by Na2CrO3/H2SO4 and explain the mechanisms step by step so I can understand it please
- a)Write the SN2 reaction mechanism between iodobutane with sodium hydroxide, NaOH. b)Predict the products and show the SN1 reaction mechanism that occurs with 2-iodo-2- methylpropane in aqueous sodium hydroxide, NaOH.Starting with 3-nitroaniline, show how to prepare the following compounds. Q.) 1,3-Dihydroxybenzene (resorcinol)Devise a synthesis of each of the following compounds. Besidesinorganic reagents, you may use hydrocarbons and halides having ≤ 6C′s, and CH2=CHCOOCH3 as starting materials. Each synthesis must use at least one of the carbon–carbon bond-forming reactions.