CO Me NaOMe Me CO2Me NaOMe OMe CO2Me NaOMe CO Me bonus: which would b favored...
26. Select the product for the transformation indicated: CO Me COMO Meo OME NaoMe MOH CO, Me 7 dil HCI ? OH CO, Me A. C D B. 27. Select the needed sequence of reactions to load from the starting material to the desired product: OH 0 OH A. PCC / Nah, MeOH / LDA, acetaldehyde / dil. HCI ? B. H.CrO4/LDA, Mel / LDA. propanal i dil. HCI C. MCPBA / Nah, MeBr / Nah, propyl-1/KOH D. NBS /...
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What is the product for the following reaction? Provide a stepwise mechanism. Meo OME NaOME MeOH dil. HCI ? CO2Me CO2Me مل OH OH CO2Me CO Me A. C. D. B.
Propose an arrow pushing mechanism for the following
reactions.
CO2me cO,me Li ir
22. The mixed Claisen reaction shown provides product in only a trace amount. The starting materials are obtained upon isolation. Why? co Me CO2Me NaoMe 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
4.(4 pt) Which would be the major product? OH OH OMe OOH OH Co. OH H MeOH ОН O OMe cooMe LooMe Pr IP IP IP Tipi 5.(3pt) Which is the best option for the solvolysis reaction A. an equal mixture of 1 and 2 result B. 1 is the major product C. 2 is the major product D. Neither can form HN нун ннн 6. (2 pt) Which would undergo an Spl reaction with the fastest rate? Br Br...
Draw a detailed arrow-pushing mechanism for the following transformation. (4 pts) OME B OMe NaOH Me Me H2O2 Me H Me
da med ome 1. Product of RAN? Lian Hot Bule 2) Hz which alkyl halide would be correct for this synthesis? 1. Naome 2. alkyl bromide 3. KOHA 4. H₂O* a) iso-propyl bromide b) n-propyl bromide c) iso-butyl bromide d) methylbromide e) not possible T 04
1) The following mixed Claisen reaction produces only a trace amount of product. The starting materials are obtained upon isolation. Why? CO2Me CO2Me NaOME MeOH CO Me / 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 2) Which of the following compounds will be formed from the reaction below: NaOH Ph H2O, THE 5...
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. this generates heat leading to decarboxylation 0 12. Select the proper sequence of reactions needed to produce the desired final product: ? A. NaoMe, Mel/NaOMe, allyl-Br /...
which reaction product would be kinetically favored? Potential energy A+B E+F C+D Reaction coordinate Select one: O a. All would be favored ob. None would be favored O c. E and F d. C and D