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
Homework Answers
1,5- Hexadiene readily undergoes addition reaction with Br2 due the the presence of conjugated intermediate. Therefore it is used to use up all the unreacted Bromine molecules
Add Answer to:
Why is 1,5-hexadiene added at the end of Bromine addition to trans-cinnamic acid? To neutralize any unreacted cinnamic...
another answer is the amount of trans cinnamoc acid was insuficient Reaction progress of bromine addition to trans-c...
another answer is the amount of trans cinnamoc acid was
insuficient
Reaction progress of bromine addition to trans-cinnamic acid can be monitored by testing samples from reaction mixture over specific periods of times with TLC plates as shown by the attached picture. How can you explain your results if you only obtained spot (b) at the end of reaction? a) b) c) a) cinnamic acid b) cinnamic acid and product c) Product the applied eluent in the TLC test was...
Is the stereochemistry of the ionic addition of bromine to trans-cinnamic acid syn or anti addition? Why? I recorded a b...
Is the stereochemistry of the ionic addition of
bromine to trans-cinnamic acid syn or anti addition? Why? I
recorded a bp of 195 C.
3-phenylpropanoic acid, a dibromide with two le; these are shown here as their Fischer projections: i C. Hg C. Hg CHE CaHs HBr BrH H Br Br- H Br- H H -Br - HBr BrH COZH COH CO2H CO2H 2S,3S 2R,3R 28,35 2S,3R Enantiomeric Pair (threo diastereomers) mp 93.5-95.0°C Enantiomeric Pair (erytho diastereomers) mp 202-204 °C...
a. Based on the stereochemistry of the addition of bromine to trans-cinnamic acid, write the structure...
a. Based on the stereochemistry of the addition of bromine to trans-cinnamic acid, write the structure of the product(s) that will form when bromine reacts with (Z)-2-hexene.
A procedure calls for the slow addition of bromine to trans-cinnamic acid at a temperature of 50 °C. Select the likely c...
A procedure calls for the slow addition of bromine to trans-cinnamic acid at a temperature of 50 °C. Select the likely consequence of adding the bromine all at once instead.
2. Draw the entire mechanism for the syn- addition of bromine + trans-cinnamic acid. All stereochemistry...
2. Draw the entire mechanism for the syn- addition of bromine + trans-cinnamic acid. All stereochemistry must be shown. All chirality (R, S) must be labeled for chiral centers.
3. Draw the entire mechanism for the anti- addition of bromine + trans-cinnamic acid. All stereochemistry...
3. Draw the entire mechanism for the anti- addition of bromine + trans-cinnamic acid. All stereochemistry must be shown. All chirality (R, S) must be labeled for chiral centers.
3. Draw the entire mechanism for the anti- addition of bromine + trans-cinnamic acid. All stereochemistry...
3. Draw the entire mechanism for the anti- addition of bromine + trans-cinnamic acid. All stereochemistry must be shown. All chirality (R, S) must be labeled for chiral centers. *Use backside of paper.
Bromine addition to trans-cinnamic acid produces four optical isomers with four chiral C-atoms. True False
Bromine addition to trans-cinnamic acid produces four optical isomers with four chiral C-atoms. True False
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.
Stereochemistry of bromine addition 1) To investigate the mechanism for the addition of bromine to an...
Stereochemistry of bromine addition 1) To investigate the mechanism for the addition of bromine to an alkene, we will use the melting point of our brominated products. The three possible outcomes for this lab are to obtain 1)only the syn enantiomers, 2)only the anti enantiomers, or 3)a mixture of diastereomers. Match these possible outcomes to the three possible mechanisms described in the lab manual, bromonium ion, concerted Br2 activation, and carbonation 2) In this experiment we don't crystallize the final...
another answer is the amount of trans cinnamoc acid was
insuficient
Reaction progress of bromine addition to trans-cinnamic acid can be monitored by testing samples from reaction mixture over specific periods of times with TLC plates as shown by the attached picture. How can you explain your results if you only obtained spot (b) at the end of reaction? a) b) c) a) cinnamic acid b) cinnamic acid and product c) Product the applied eluent in the TLC test was...
Is the stereochemistry of the ionic addition of
bromine to trans-cinnamic acid syn or anti addition? Why? I
recorded a bp of 195 C.
3-phenylpropanoic acid, a dibromide with two le; these are shown here as their Fischer projections: i C. Hg C. Hg CHE CaHs HBr BrH H Br Br- H Br- H H -Br - HBr BrH COZH COH CO2H CO2H 2S,3S 2R,3R 28,35 2S,3R Enantiomeric Pair (threo diastereomers) mp 93.5-95.0°C Enantiomeric Pair (erytho diastereomers) mp 202-204 °C...
a. Based on the stereochemistry of the addition of bromine to trans-cinnamic acid, write the structure of the product(s) that will form when bromine reacts with (Z)-2-hexene.
2. Draw the entire mechanism for the syn- addition of bromine + trans-cinnamic acid. All stereochemistry must be shown. All chirality (R, S) must be labeled for chiral centers.
3. Draw the entire mechanism for the anti- addition of bromine + trans-cinnamic acid. All stereochemistry must be shown. All chirality (R, S) must be labeled for chiral centers.
3. Draw the entire mechanism for the anti- addition of bromine + trans-cinnamic acid. All stereochemistry must be shown. All chirality (R, S) must be labeled for chiral centers. *Use backside of paper.
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