(18 pts) 4. Predict two elimination products (A and B) for the reaction shown below. Show...
3) Predict the major thermodynamic product for the elimination reaction below. OH 4) Draw a type of base that would give a different alkene product in the reaction in problem #3? As in more substituted vs. less substituted products.
3. In the deuterium-labeled compound below predict the product(s) of the elimination of the following elimination reaction and tell whether the alkene formed contains deuterium or not. (20 pts) HAC CH OH H,SO (aq) hear o H2CD NaOCH.CH CHCH OH heat CH3 (iii) Write a detail mechanism for the formation of the product in question 31. 4. Name the following compounds and state the orientation around the double bond (cis/trans or E/Z) (10 pts) HO,
3. In the deuterium labeled compound below nredict the products of the elimination of the following elimination reaction and tell whether the alkene formed contains deutenum or not. (20 pts) HC CH3 OH H2SO4(aq) IH heat нстр (ii) NaOCH.CH CH,CH,OH heat CH3 (iii) Write a detail mechanism for the formation of the product in question 3(1).
3. In the deuterium-labeled compound below predict the product(s) of the elimination reaction of the following elimination reaction and tell whether the alkene formed contains deuterium (D) or not. (20 pts) HC CH, ОН TH 0 H,SO.(aq) heat D HC NaOCH.CH CH2CH,OH heat CH, (ii) Write a detail mechanism for the formation of the product in question 30). 4. Name the following compounds and state the orientation around the double bond (cis/trans or E/Z) (10 pts) НО. Dr. Denton
3. In the deuterium -labeled compound below predict the product (s) of the elimination reactions of the following elimination reaction and tell whether the alkene formed contains deuterium (D) or not. (20 pts) Н.с, сн, OH H2SO&(aq) (i) heat НС NAOCH2CH3 (ii) CH3CH2OH н CH3 heat (iii) Write a detail mechanism for the formation of the product in question 3(i)
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(2 pts) Draw the major elimination products and Identify the mechanism responsible (E1 or E2). If both E and Z isomers form, only draw the E alkene. If only one isomer forms, label the alkene "E,""Z," or neither 1. NaOCH3 а. Br НОСHЗ b. НОСНЗ C. CI NaOCH3 d. (6 pts) Draw the substitution and/or elimination product(s) for the following reactions and identify 2. the mechanism responsible (SN1, SN2, E1, or E2) for each product drawn....
4. [12 pts] Propose mechanisms for the formation of all 3 products shown in the reaction below: (draw curved arrows, intermediates, and resonance structures if necessary. NO NEED FOR TRANSITION STATES! CH CH CH CH Br Heat CH,CH,OH OCH.CH Mechanism.14 points) Mechanism 2 points) Mechanism.3 14 points) 5. [14 pts] Provide the major products of reacting the alkene shown in the middle of the scheme below with all the reagents independently. Draw the products' structures in the corresponding table below...
4. Predict the products of the following reactions & indicate whether they are most likely to go through an SN2, SN1, E1, or E2 mechanism. NaCN DMSO NaOH CH3OH heat Only one product is formed in the following E2 elimination reaction. Draw an arrow-pushing mechanism for the reaction and provide the correct product structure. Include a 3-D drawing (chair conformation) displaying proper stereochemistry of the transition state to explain formation of only the major product. CH3 •Br NaOCH3 ~"'CHS
14. Predict the major product of the following reaction? 15. Predict the major product of the following reaction? " " " " 16. Which of the following compounds has the longest (smallest HOMO LUMO gap)? 17. Predict the major product of the following reaction? 18. How many signals would you expect in "C NMR spectrum of the following compound? 1 و ا م
score 4. 32 pts) REACTION SunsmomON Vs ELIMINATION Predict the organic prodoci(s) of the following reactions (label MAJOR alkene products where applicable) Specify the absolute and or relative sieieochemistry (dentify any stereoisomeric relationships that arise) Label each reaction as eider SNI, s 2, E1, or E2 (all reactions lead to new products) NaOH, Hao NaNs DMF a mong handa ed base LDA, THF NaOH, H2O Mel, DMSO HBr, H