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31. Provide the final product that results upon completion of the multi-step synthesis shown: O NaoMe...
A Br 31. Provide the final product that results upon completion of the multi-step synthesis shown: NaOme MeOH NaOME H30 PhP=CH2 I dil ? Оме HCI Br NaOme OH OH P+Ph Br A. Br C. D. B. CO2H
30. Select the product for the reaction shown below: HO KOH A. B. C. 31. Provide the final product that results upon completion of the multi-step synthesis shown: NaoMe MeOH NaoMe H30+ / dil A Ph3P=CH2 ? OMe HCI Br Br NaOME O OH OH P+Ph3 Br A. Br C. D. B. CO2H
30. Select the product for the reaction shown below: но KOH O Da, ? D. A. 0 B. C. 31. Provide the final product that results upon completion of the multi-step synthesis shown: NaoMe MeOH NaOME HO / dil PhyP-CH, OMo ? HCI Br NaoMe OH OH **Ph A. Br Br C. B. COH D
H H-N 1) What is the overall charge of the above compound when placed in an aqueous pH 7 buffer? A. O, zero B. +1 C. +2 D. +3 or +4 2) Predict the resulting product from the following multi-step synthesis shown below: O NaoMe NaoMe MeOH / dil HCI H30+ Δ Ph2P=CH2 ОMe ? Br Br NaOME O OH OH P+Ph3 Br A. Br D. B. CO2H
10. Select the compound that can not be made using the malonic ester synthesis: O O OH MeO Оме OH Ph OH A. B. Ph C. D. 11. In general both the malonic ester and acetoacetate synthesis require the addition of dilute acid in order to generate the final product. Why? A. the alkoxy cation needs to be eliminated C. the ionized cation partitions to the aqueous layer B. the stabilized enolate adds a proton in the separatory funnel D....
36. Select the final product for the multi-step sequence indicated below: ECI NaNO, pyr. AICI KOH HCI HBF NH, ACCI ? BF no 0 HO OH 37. What reagents are needed for the transformation required?: OME A. NH3, KOH / NaN 0, HCI / aniline. NaoMe B. HNO,, H2SO4 / HCI. Sn/NaNO2, HCI / anisole C. HNO3, H,80 / KOH, H,SO / NaNO2, HCl/phenol, Mel D, 4-methoxyanline, NH A CI
19. Provide the product for the alkylation transformation: O LDA / EtBr product D. C. A. B. 22. The mixed Claisen reaction shown provides product in only a trace amount. The starting materials are obtained upon isolation. Why? CO2Me NaoMe CO2Me MeOH CO2Me / dil. HCI Ph + A. pka of the propyl ester is too high B. there is only one a-proton C. the benzoate ester is resonance stabilized D. pka of the propyl ester is too low
5. Devise a multi-step synthesis that will provide the product shown from the given starting material. (Challenging!) 6 Multiple Steps 3. When diastereomers I and I undergo an E2 elimination on treatment with sodium ethoxide in ethanol, one of the isomers react 500 times faster than the other one. Also, one isomer gives only A as a product and the other isomer gives a mixture of A and B as products. Determine the products of each isomer and explain your...
The use of Grignard reagents in multi-step synthesis is widely employed. For each of the reaction sequences below, draw the major organic product that would be present after each reaction of the sequence. No mechanisms, no explanations, just draw the products (in total, 14 reaction products A to N are required). You may have to consult your lecture material and/or the textbook to solve some of these problems The use of Grignard reagents in multi-step synthesis is widely employed. For...
Provide a stepwise mechanism for the multi-step synthesis of Benzocaine. The overall reaction can be seen above. Please show every step- thanks! NH HN-C-CH; 1) KMnO4, MgSO4 HN-C-CH; (CH3CO)20 CH; 2) H2SO4 HO СН3 p-acetotoluidide COOH p-toluidine 1) HCI, 2) pH 7 H2O, A NH2 CH3CH,OH H2SO4 HOⓇO CH3CH2O o Benzocaine PABA We wish to oxidize the methyl group of p-toluidine but cannot do so without oxidizing the amino group (NH2). Consequently, the first step of our lab synthesis of...