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Bromination of E-stilbene
Bromination of E-stilbene: Mechanism and stereochemistry analysis c) Newman projection of A d)...
Bromination of Stilbene 1. For the bromination of Stilbene : i. Provide mechanism of the reaction by showing the electro...
Bromination of Stilbene 1. For the bromination of Stilbene : i. Provide mechanism of the reaction by showing the electron movement using arrow pushing. ii. Assign R/S to all the stereocenters in the product molecule. iii. Identify the functional group of the product including relative position of the bromine substitution. 2. Provide a definition for the term in situ. 3. What are two characteristics of a chemical reaction that would make it be considered “Green”. 4. Carl Djerassi published the...
a) Draw a chemical equation for the reaction in this lab, clearly indicate the possible stereochemistry...
a) Draw a chemical equation for the reaction in this lab, clearly indicate the possible stereochemistry (R/S) of all potential products (Newman Projection) from cis and trans addition to the double bond of trans-stilbene. (Hint see Expt. 3) Clearly indicate meso compounds if any. Br Br Ph Br Ph Br Br b) Draw a reaction mechanism for the reaction between bromine and trans-stilbene. Clearly shovw the nucleophilic attack of Br- on both carbons of the cyclic bromenium ion and the...
1) Write a stepwise mechanisms for the bromination of: a) trans-stilbene and b) cis-stilbene (substitute benzene...
1) Write a stepwise mechanisms for the bromination of: a) trans-stilbene and b) cis-stilbene (substitute benzene rings by Ph-notation for convenience; e.g., stilbene could be written as Ph- CH=CH-Ph). I 2) Use (S) and (R) nomenclature to label all stereogenic centers in the above products (each has two stereogenic centers) in problem 1. Identify any enantiomers and meso-products. 3) Complete the following table including formula weights and grams and moles of reagents used in order to calculate a theoretical yield...
1. Most of the class will be brominating trans-stilbene (part B) and the rest cis-stilbene (part...
1. Most of the class will be brominating trans-stilbene (part B) and the rest cis-stilbene (part A). For this assignment write a detailed procedure in your lab notebook for Part B. Upload a picture/scanned copy (5 pts). Tip: If you write the procedure down the left half of the page, you can leave space to record your measurements/observations down the right side of the page. If you end up using cis-stilbene in the experimental there will only be a few...
ох 1. Provide the name of the following compounds. så stk 2. Provide the name of...
ох 1. Provide the name of the following compounds. så stk 2. Provide the name of the following compounds. 3. Provide the line structure given the following names. A. 2,6,6,8-tetramethyl-5-neopentyldecane R. 7-methylbicycln[4.2.2]decane ох 4. A. Draw the Newman Projection of pentane looking down the C2-C3 bond in a stageered confirmation B. Draw an energy diagram showing the conformational analysis using the Newman Projection above (showing a 360 degree total rotation, 60 degrees at a time). Hint - see Figure 46,...
need help with 14-21 Stereochemistry of the Su2 reaction In the Sn2 reaction the tetrahedral carbon...
need help with 14-21
Stereochemistry of the Su2 reaction In the Sn2 reaction the tetrahedral carbon center is inverted. We describe the mechanism as nudeophilic (Nuc) back side attack; the leaving group (LG) is leav ing from the front side. Generally, the LG and the Nucare electron rich so it would be unfavorable for them to react from the same side (charge repuls ion). The geometry of the carbon at the transition state is trigonal planar. 14) Label the 2-bromobuta...
Analyze each pair of compounds structures represent. Your cho cach pair of compounds below. Identify which...
Analyze each pair of compounds structures represent. Your cho cach pair of compounds below. Identify which class of isomers each pair of s represent. Your choices are: (i) constitutional, (ii) conformational, (iii) omers, (iv) diastereomer or (v) identical (non-isomers). Only one label for each pair should be used. For each case show work (drawings, (R)/(S), rotation of bonds, chair- "ps, etc) which led you to each answer for the pairs below. Any differences of answers between you and your peers...
What is answer of #10?? Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1....
What is answer of #10??
Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1. After reviewing the GC and 'H NMR spectra, what is the major product of the reaction? + 3 a. BH: . THF 3 b. 3 H2O2 OH + 3 OH c. NaOH MOH OH racemic racemic major 2. Draw the complete curved arrow mechanism for the reaction to produce the major product, including both the hydroboration and oxidation steps. Repetitive steps need only be...
What is answer of #9??? Help me Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis /...
What is answer of #9???
Help me
Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1. After reviewing the GC and 'H NMR spectra, what is the major product of the reaction? + 3 a. BH: . THF 3 b. 3 H2O2 OH + 3 OH c. NaOH MOH OH racemic racemic major 2. Draw the complete curved arrow mechanism for the reaction to produce the major product, including both the hydroboration and oxidation steps. Repetitive steps need...
A $1.505.52 $1,067.24 C $1.758.71 D. $1,519 58 E$902.71 14. The Steel Factory is considering a project that will p...
A $1.505.52 $1,067.24 C $1.758.71 D. $1,519 58 E$902.71 14. The Steel Factory is considering a project that will produce annual cash flows of $43,800, $40,200, $46,200, and $41,800 over the next four years, respectively, What is the internal rate of return if the initial cost of the project is $127,900 A. 13.00 percent B. 10.19 percent C. 11.28 percent D. 12.24 percent E 12.83 percent 15. Athletic Corporation is planning a $1.08 million new production facility. This cost will...
a) Draw a chemical equation for the reaction in this lab, clearly indicate the possible stereochemistry (R/S) of all potential products (Newman Projection) from cis and trans addition to the double bond of trans-stilbene. (Hint see Expt. 3) Clearly indicate meso compounds if any. Br Br Ph Br Ph Br Br b) Draw a reaction mechanism for the reaction between bromine and trans-stilbene. Clearly shovw the nucleophilic attack of Br- on both carbons of the cyclic bromenium ion and the...
1) Write a stepwise mechanisms for the bromination of: a) trans-stilbene and b) cis-stilbene (substitute benzene rings by Ph-notation for convenience; e.g., stilbene could be written as Ph- CH=CH-Ph). I 2) Use (S) and (R) nomenclature to label all stereogenic centers in the above products (each has two stereogenic centers) in problem 1. Identify any enantiomers and meso-products. 3) Complete the following table including formula weights and grams and moles of reagents used in order to calculate a theoretical yield...
1. Most of the class will be brominating trans-stilbene (part B) and the rest cis-stilbene (part A). For this assignment write a detailed procedure in your lab notebook for Part B. Upload a picture/scanned copy (5 pts). Tip: If you write the procedure down the left half of the page, you can leave space to record your measurements/observations down the right side of the page. If you end up using cis-stilbene in the experimental there will only be a few...
ох 1. Provide the name of the following compounds. så stk 2. Provide the name of the following compounds. 3. Provide the line structure given the following names. A. 2,6,6,8-tetramethyl-5-neopentyldecane R. 7-methylbicycln[4.2.2]decane ох 4. A. Draw the Newman Projection of pentane looking down the C2-C3 bond in a stageered confirmation B. Draw an energy diagram showing the conformational analysis using the Newman Projection above (showing a 360 degree total rotation, 60 degrees at a time). Hint - see Figure 46,...
need help with 14-21
Stereochemistry of the Su2 reaction In the Sn2 reaction the tetrahedral carbon center is inverted. We describe the mechanism as nudeophilic (Nuc) back side attack; the leaving group (LG) is leav ing from the front side. Generally, the LG and the Nucare electron rich so it would be unfavorable for them to react from the same side (charge repuls ion). The geometry of the carbon at the transition state is trigonal planar. 14) Label the 2-bromobuta...
Analyze each pair of compounds structures represent. Your cho cach pair of compounds below. Identify which class of isomers each pair of s represent. Your choices are: (i) constitutional, (ii) conformational, (iii) omers, (iv) diastereomer or (v) identical (non-isomers). Only one label for each pair should be used. For each case show work (drawings, (R)/(S), rotation of bonds, chair- "ps, etc) which led you to each answer for the pairs below. Any differences of answers between you and your peers...
What is answer of #10??
Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1. After reviewing the GC and 'H NMR spectra, what is the major product of the reaction? + 3 a. BH: . THF 3 b. 3 H2O2 OH + 3 OH c. NaOH MOH OH racemic racemic major 2. Draw the complete curved arrow mechanism for the reaction to produce the major product, including both the hydroboration and oxidation steps. Repetitive steps need only be...
What is answer of #9???
Help me
Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1. After reviewing the GC and 'H NMR spectra, what is the major product of the reaction? + 3 a. BH: . THF 3 b. 3 H2O2 OH + 3 OH c. NaOH MOH OH racemic racemic major 2. Draw the complete curved arrow mechanism for the reaction to produce the major product, including both the hydroboration and oxidation steps. Repetitive steps need...
A $1.505.52 $1,067.24 C $1.758.71 D. $1,519 58 E$902.71 14. The Steel Factory is considering a project that will produce annual cash flows of $43,800, $40,200, $46,200, and $41,800 over the next four years, respectively, What is the internal rate of return if the initial cost of the project is $127,900 A. 13.00 percent B. 10.19 percent C. 11.28 percent D. 12.24 percent E 12.83 percent 15. Athletic Corporation is planning a $1.08 million new production facility. This cost will...
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