another answer is the amount of trans cinnamoc acid was
insuficientHomework Answers
If the eluent is highly polar, you would have not seen the separation of starting material and product on the TLC plate. If the bromine is used in excess, you should have seen more than one spots on TLC plate in the product. If bromine is used in less amount, you should have seen some starting material unconsumed. As there is only one spot observed in the product.
Therefore, the correct answer is
The amount of bromine and trans cinnamic were added with correct equivalent amounts.
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another answer is the amount of trans cinnamoc acid was insuficient Reaction progress of bromine addition to trans-c...
Why is 1,5-hexadiene added at the end of Bromine addition to trans-cinnamic acid? To neutralize any unreacted cinnamic...
Why is 1,5-hexadiene added at the end of Bromine addition to trans-cinnamic acid? To neutralize any unreacted cinnamic acid molecules To make crosslinking reaction with the double bond of trans-cinnamic acid To make crosslinking reaction with unreacted bromine molecules To neutralize any unreacted bromine molecules To neutralize any molecules of HBr that might be formed as by product
Draw the mechanism of the bromination reaction between trans cinnamic acid and bromine. Be sure to...
Draw the mechanism of the bromination reaction between trans cinnamic acid and bromine. Be sure to include stereochemistry( wedge and dashed structures). The product obtained was the racemic mixture of (2R,3S) and (2S,3R) of 2,3-dibromo-3-phenylpropanoic acid.
Organic Chemistry Addition of Bromine to an Alkene-HELP ASAP PLEASE table of reagents and properties Reagent &n
Organic Chemistry Addition of Bromine to an Alkene-HELP ASAP PLEASE table of reagents and properties Reagent MW (g/mol) mp(Celsius) d( g/ml) trans-cinamic acid 148.2 132-135 acetic acid 60 1.05 pyridinium tribromide 319.8 - 2,3-dibromo-3-phenylpropanoic acid 308.0 Pair A: 93-95, Pair B: 202-204 Organic Chemistry- addition of bromine to an Alkene For a lab the preparation of 2,3-dibromo-3 phenylpropanoic acid was done. 1.2 g of trans-cinnamic acid was dissolved in 4 ml of glacial acetic acid. 2.5 g of pyrimide tribromide...
A student is conducting a reaction (not necessarily your Diels-Alder reaction). They are monitoring the progress...
A student is conducting a reaction (not necessarily your Diels-Alder reaction). They are monitoring the progress of their reaction using standard silica TLC with DCM as their eluent. Each of their plates is spotted from left to right with pure starting material, a co-spot, and finally, their reaction mixture alone. Based on the TLC place shown below, you would conclude... that the reaction is complete and they can proceed with isolating their product. that their reaction is working, but needs...
any excess bromine that persists after the reaction will mostly be left in the choos: (filtered...
any excess bromine that persists after the reaction will
mostly be left in the choos: (filtered solid, filtrate, or reaction
vile) and quenched with the choose: (oxidizing agent, reducing
agent, strong acid, or strong base) choose: (acetic acid, methanol,
sodium bisulfate, sodium bisulfite).
Procedure: Bromination of E-Stilbene SAFETY INFORMATION Carry out this experiment in a fume hood and wear nitrile gloves. Pyridinium tribromide is an oxidizing agent, is corrosive, and can severe skin and eye burns. Glacial acetic severe skin...
11. The TLC shown below was taken in step 4 of the procedure for reaction 3:...
11. The TLC shown below was taken in step 4 of the procedure for reaction 3: . . . SM=0,m,p-methylaniline Co= Co-Spot RM= Reaction Mixture - . : SM CO RM a) Which spot is likely the para isomer of methylaniline? How could you tell? (2 points) b) Which spot is likely the acetylated para product (p-methylacetanilide)? How can you tell? (2 points) c) Keeping in mind we are only trying to acetylate the para isomer of methylaniline, is the...
What is the reaction product(s) of oleic acid & sodium methoxide? Show the structure(s). Part A:...
What is the reaction product(s) of oleic acid & sodium methoxide? Show the structure(s). Part A: Acid Catalyzed Fischer Esterification of Free Fatty Acids Add 20 mL of canola oil and a magnetic stir bar to a 125-mL Erlenmeyer flask, and place the flask on a magnetic stirring plate. Add 2–3 mL of methanol and up to three drops of concentrated sulfuric acid Perform this step with caution, as this is a strong acid! Immerse a thermometer into the reaction...
a) Which products (shown above) from reaction 3 can react with HCl in an acid-base reaction?...
a) Which products (shown above) from reaction 3 can react with
HCl in an acid-base reaction? Show the mechanism for this acid-base
reaction and give the structures that would result from the
protonation of these products. Which phase (organic or aqueous)
would these protonated products be soluble in?
b) Which phase (organic or aqueous) would the
p-methylacetanilide be found in?
In step 5 of reaction 3, the reaction mixture containing the products shown below in ethyl acetate is extracted twice...
Based on the Wittig Reaction exp. below, please answer a) and b). In b) you can...
Based on the Wittig Reaction exp. below, please answer a) and
b). In b) you can disregard the part about the IR, just please
interpret and assign protons, shift values, which protons are for
which groups, etc on the HNMR. The % yield was 34%, and MP was
lower than expected (to assist with answering part a). This should
be all the information you need to answer the question.
HNMR
Discuss the percentage yield of the reaction. Explain and provide...
Only need help with 5,6,7 and mechanism FTIR and NMR Spectra After completing a reaction and...
Only need help with 5,6,7
and mechanism
FTIR and NMR Spectra After completing a reaction and working up the products, it is still necessary to confirm that the correct product was formed. The most common tools used for this analysis are Fourier Transform Infrared (FTIR) and Nuclear Magnetic Resonance (NMR) spectroscopy. In the virtual laboratory, 'H and C NMR spectra are available. Details on interpreting FTIR and NMR spectra are found in your textbook. Your instructor may or may not...
A student is conducting a reaction (not necessarily your Diels-Alder reaction). They are monitoring the progress of their reaction using standard silica TLC with DCM as their eluent. Each of their plates is spotted from left to right with pure starting material, a co-spot, and finally, their reaction mixture alone. Based on the TLC place shown below, you would conclude... that the reaction is complete and they can proceed with isolating their product. that their reaction is working, but needs...
any excess bromine that persists after the reaction will
mostly be left in the choos: (filtered solid, filtrate, or reaction
vile) and quenched with the choose: (oxidizing agent, reducing
agent, strong acid, or strong base) choose: (acetic acid, methanol,
sodium bisulfate, sodium bisulfite).
Procedure: Bromination of E-Stilbene SAFETY INFORMATION Carry out this experiment in a fume hood and wear nitrile gloves. Pyridinium tribromide is an oxidizing agent, is corrosive, and can severe skin and eye burns. Glacial acetic severe skin...
11. The TLC shown below was taken in step 4 of the procedure for reaction 3: . . . SM=0,m,p-methylaniline Co= Co-Spot RM= Reaction Mixture - . : SM CO RM a) Which spot is likely the para isomer of methylaniline? How could you tell? (2 points) b) Which spot is likely the acetylated para product (p-methylacetanilide)? How can you tell? (2 points) c) Keeping in mind we are only trying to acetylate the para isomer of methylaniline, is the...
a) Which products (shown above) from reaction 3 can react with
HCl in an acid-base reaction? Show the mechanism for this acid-base
reaction and give the structures that would result from the
protonation of these products. Which phase (organic or aqueous)
would these protonated products be soluble in?
b) Which phase (organic or aqueous) would the
p-methylacetanilide be found in?
In step 5 of reaction 3, the reaction mixture containing the products shown below in ethyl acetate is extracted twice...
Based on the Wittig Reaction exp. below, please answer a) and
b). In b) you can disregard the part about the IR, just please
interpret and assign protons, shift values, which protons are for
which groups, etc on the HNMR. The % yield was 34%, and MP was
lower than expected (to assist with answering part a). This should
be all the information you need to answer the question.
HNMR
Discuss the percentage yield of the reaction. Explain and provide...
Only need help with 5,6,7
and mechanism
FTIR and NMR Spectra After completing a reaction and working up the products, it is still necessary to confirm that the correct product was formed. The most common tools used for this analysis are Fourier Transform Infrared (FTIR) and Nuclear Magnetic Resonance (NMR) spectroscopy. In the virtual laboratory, 'H and C NMR spectra are available. Details on interpreting FTIR and NMR spectra are found in your textbook. Your instructor may or may not...
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