Propose a mechanism for formation of 2-carbethoxy-4-butanolactone and 4-butanolactone (y-butyrolactone) in the following sequence of reactions. COET 1. EtO-Na+ OEt 3. NaOH, H,O, heat EtO 4. HCI, heat 2-Carbethoxy- 4-Butanolactone 4-butanolactone (y-Butyrolactone)
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- Predict the products of the reaction of the below reagents with either acetophenone or phenylacetaldehyde. NaBH4, H3O+ HCN, KCN H2NNH2 CH3MgBr, then H3O+ NH2OH, catalytic acidThe 1H NMR spectra for two esters with molecular formula C8H8O2 are shown next. Which of the esters is hydrolyzed more rapidly in an aqueoussolution with a pH of 10?Show the products from the reaction of p-bromoaniline with following reagents: a)CH3Cl(excess) b) HCl c) CH3COCl d) CH3MgBr e) CH3CH2Cl, AlCl3
- The order of addition of the bases is important. What would have happened if you instead treated the initial mixture of benzoic acid, 2 - napthol and 1,4-dimethoxybenzene with a 1M NaOH aqueous solution instead of the saturated NaHCO3 solution? How would the separation of the compounds be affected? What would change?In this study, the researcher compared S N 2 and E2reaction rates for four substrates. Three of the substrates had a second halogen on the bposition in the molecule. This work also compared the behavior of two nucleophiles:dianion I and II. You should read the abstract and look at Scheme 1 (p. 3082) and Table 4(p. 3086). Abstract: The gas-phase reactions of benzoate and phenolate containing dianions with a series of ‚-substitutedalkyl bromides (X-CH2CH2Br, X ) H, F, Cl, Br) have been studied in a quadrupole ion trap mass spectrometer.Branching ratios between SN 2 and E2 products were measured and rate constants were determined. The‚-halogens increase both the S N 2 and E2 rates, but the effect is greater for the latter process and thereforethese substituents lead to an increase in the amount of elimination. The kinetic data for the SN 2 reactions canbe analyzed via a two-parameter, linear free-energy relationship and the results indicate that field-effects (i.e.,electron-withdrawing…In this study, the researcher compared S N 2 and E2reaction rates for four substrates. Three of the substrates had a second halogen on the bposition in the molecule. This work also compared the behavior of two nucleophiles:dianion I and II. You should read the abstract and look at Scheme 1 (p. 3082) and Table 4(p. 3086). Abstract: The gas-phase reactions of benzoate and phenolate containing dianions with a series of ‚-substitutedalkyl bromides (X-CH2CH2Br, X ) H, F, Cl, Br) have been studied in a quadrupole ion trap mass spectrometer.Branching ratios between SN 2 and E2 products were measured and rate constants were determined. The‚-halogens increase both the S N 2 and E2 rates, but the effect is greater for the latter process and thereforethese substituents lead to an increase in the amount of elimination. The kinetic data for the SN 2 reactions canbe analyzed via a two-parameter, linear free-energy relationship and the results indicate that field-effects (i.e.,electron-withdrawing…
- In this study, the researcher compared S N 2 and E2reaction rates for four substrates. Three of the substrates had a second halogen on the bposition in the molecule. This work also compared the behavior of two nucleophiles:dianion I and II. You should read the abstract and look at Scheme 1 (p. 3082) and Table 4(p. 3086). Abstract: The gas-phase reactions of benzoate and phenolate containing dianions with a series of ‚-substitutedalkyl bromides (X-CH2CH2Br, X ) H, F, Cl, Br) have been studied in a quadrupole ion trap mass spectrometer.Branching ratios between SN 2 and E2 products were measured and rate constants were determined. The‚-halogens increase both the S N 2 and E2 rates, but the effect is greater for the latter process and thereforethese substituents lead to an increase in the amount of elimination. The kinetic data for the SN 2 reactions canbe analyzed via a two-parameter, linear free-energy relationship and the results indicate that field-effects (i.e.,electron-withdrawing…A chemist wanted to synthesize the anesthetic 2-ethoxy-2-methylpropane. He used ethoxide ion and 2-chloro-2-methylpropane for his synthesis and ended up with no ether. What was the product of his synthesis? What reagents should he have used?You have learned that ester may be hydrolyzed in aqueous base. Why does a workup using 50ml of 10% NaOH and 50g of ice not hydrolyze a nitro benzocaine derivative?
- Give good explanation What is the name of the product when you reduce 1-hydroxy-2-hexanone with sodium borohydride (NaBH4)?Give reagents necessary and show isolated intermediates for the synthesis below.What is the best set of reagents to achieve deoxygenation of 2-pentanone to pentane? A. NaClO2/NaH2PO4 B. LiAlH4, Et2O C. DIBAL-H, THF D. NH2NH2/t-BuOK, DMSO