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- what is the Nature of the leaving group (LG)? 5. what is the relative size of activation energy (Ea) for each reaction? 6. what is the Hammond's postulate? 7. what are the Relative thermodynamic stability of the reactive intermediates? 8. what is Influence of the solvent (if given) on the reactions and intermediates?Show the reaction mechanism for the formation of:a. RCONH2 from the reaction of RCOOR’ with NH3What type of mechanism is needed for this reaction?
- Why we need step 3 before step 4? a. Because the nitro group increases the electrophilicity at the ortho positions which is where the bromine is added. b. Because the amine group is a strong ortho, para director which is what controls the regiochemical outcome of this bromination. c. Step 4 is unessesary. The symmetry of compound 3 allows for the bromination to be regioselective and give compound 5. 5. There will be a mixture of products because there is no selectivity for a major product.What is the major product after aqueous work up?Which reacts faster in an E2 elimination, cis-or-trans1-bromo-3-tert-butylcyclohexane
- Would you expect acetate ion (CH3CO2 -) to be a better nucleophile in an SN2 reaction with an alkyl halide carried out in methanol or in dimethyl sulfoxideExplain the observed rate of reaction for the following compounds in an Sn1 reaction: (3From each pair, select the stronger nucleophile. Q.) CH3SH or CH3S-
- What is the best reagent for carrying out the reaction shown below?For SN1 Explain the order in which 1o (primary) alkyl halides reacted (fastest to slowest) and explain why. The 1o primary alkyl halides are: (see picture below) 1-chlorobutane 1-bromobutane 1-chloro-2butene benzylchloride1. Which of the following is the strongest nucleophile? Refer to the diagram below with an MeOH, MeSH, etc. 2. Which of the following is true about the stereochemistry of SN1 reaction?a.retention of configuration at the electrophilic centerb.50:50 mixture of retention and inversion of configuration at the electrophilic centerc.inversion of configuration at the electrophilic centerd. slightly more inversion than retention at the electrophilic center
