Predict (i.e. draw and label) the major aldol product that would be formed if D-proline was...
Predict (i.e. draw and label) the major aldol product that would be formed if D-proline was used as a catalyst instead of L-proline
Reaction: Isobutyraldehyde + acetone ------(L-proline)----> (R)-aldol product + (S)-aldol product
Homework Answers
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Predict (i.e. draw and label) the major aldol product that would
be formed if D-proline was...
Consider the above aldol reaction with proline as a catalyst. a. Please draw the Zimmerman-Traxler like...
Consider the above aldol reaction with proline as a
catalyst.
a. Please draw the Zimmerman-Traxler like transition state for
this reaction.
b. Is the favored product syn or anti according to the
transition state?
Thank you in advance for your help
-4 °C L-proline OH H HY-Pr y -Pr CH Dimethylformamide H 10% L-proline CH3 ТОН NH
3. Give the major organic aldol product for each reaction, along with the dehydration product (if...
3. Give the major organic aldol product for each reaction, along with the dehydration product (if possible) formed after heating. NaOH HO NaOH HO NaOH heat H2O 4. In the following reaction the aldol product C is difficult to isolate, and even without heating the dehydration product D is formed instead. Explain. ОН Ін 10-4 NaOH HO 5. Draw all possible aldol products from this mixed aldol reaction (not dehydrated). NaOH HO
Predict the Product. Provide the stable organic product(s) that would result for each reaction below. Label...
Predict the Product. Provide the stable organic product(s)
that would result for each reaction below. Label the product formed
in highest yield as “major”.
Synthesis of 1,2,3,4-Tetraphenyinaphthalene Digital Report Sheet Chemistry 2550 Predict the Product. Provide the stable organic product(s) that would result for each reaction below. Label the product formed in highest yield as "major homines I aso t sa Bay
5. a) Draw the major 1,2-addition product and the major 1,4-addition product of each of the...
5. a) Draw the major 1,2-addition product and the major 1,4-addition product of each of the following reactions. Label each product as either the 1,2-addition product or 1,4-addition product and as either the thermodynamic or kinetic product. (12 pts) H" catalyst H catalyst b) Consider the reaction of a nucleophile with conjugated carbonyl. Provide an example of a nucleophile that would favor the 1,2-addition product and explain why. Provide an example of a nucleophile that would favor the 1,4-addition product...
E2 Reaction 2. Draw all constitutional isomers formed in each E2 reaction and predict the major...
E2 Reaction 2. Draw all constitutional isomers formed in each E2 reaction and predict the major product using the Zaitsev rule. Be OH El Reaction 3. What alkene is the major product formed from each alkyl halide in an El reaction? 4. Label the mechanism as SN2, SN1, E2 or El. You do not have to draw the product(s). CHO CH3-C-CH2-CH CH
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using...
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using OH or RO in H20 or ROH. (Hint: the product of an aldol reaction is a B-hydroxy carbonyl compound or an a,b- unsaturated carbonyl compound. The a,ß-unsaturated carbonyl will be the major product unless elimination of H2O cannot form the conjugated system.) он Но, но Н,0 НО. ОН НО. он H, H НО. НО.
Predict the products of the following elimination reaction. Draw the major organic product formed in the...
Predict the products of the following elimination reaction. Draw the major organic product formed in the following reaction. For the alcohol reaction below, give the major organic product.
Section 2 Predict the Product/Intermediate for each Organic Reaction Provide only the major organic product(s) formed...
Section 2 Predict the Product/Intermediate for each Organic Reaction Provide only the major organic product(s) formed for each reaction below. (0.5 pt. each) For Stereoisomers: If the reaction is diastereoselective then you must provide the correct relative configuration for the diastereomer(s) formed as a result of the reaction. Br2, CCL 2 eq. (CH3),COK, DMSO DBN Na, Liquid NH Nal, Acetone 2) OH, H202 Draw intermediate 1.0 eq. HB Draw Intermediate HgSo., H2SO., H,0
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using...
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using OH or RO in H20 or ROH. (Hint: the product of an aldol reaction is a B-hydroxy carbonyl compound or an a,b- unsaturated carbonyl compound. The a,ß-unsaturated carbonyl will be the major product unless elimination of H2O cannot form the conjugated system.) MeO- MeOH ale nie ma lonky Eto- Et0 EtOH MeO- MeOH Eto- EtOH MeO- walay Meo OMe bose MeOH
predict the major product for the following reaction and draw the full mechanism for the product...
predict the major product for the following reaction
and draw the full mechanism for the product formation. (hint: aldol
condensation reaction)
NаОННО Н
Consider the above aldol reaction with proline as a
catalyst.
a. Please draw the Zimmerman-Traxler like transition state for
this reaction.
b. Is the favored product syn or anti according to the
transition state?
Thank you in advance for your help
-4 °C L-proline OH H HY-Pr y -Pr CH Dimethylformamide H 10% L-proline CH3 ТОН NH
3. Give the major organic aldol product for each reaction, along with the dehydration product (if possible) formed after heating. NaOH HO NaOH HO NaOH heat H2O 4. In the following reaction the aldol product C is difficult to isolate, and even without heating the dehydration product D is formed instead. Explain. ОН Ін 10-4 NaOH HO 5. Draw all possible aldol products from this mixed aldol reaction (not dehydrated). NaOH HO
Predict the Product. Provide the stable organic product(s)
that would result for each reaction below. Label the product formed
in highest yield as “major”.
Synthesis of 1,2,3,4-Tetraphenyinaphthalene Digital Report Sheet Chemistry 2550 Predict the Product. Provide the stable organic product(s) that would result for each reaction below. Label the product formed in highest yield as "major homines I aso t sa Bay
5. a) Draw the major 1,2-addition product and the major 1,4-addition product of each of the following reactions. Label each product as either the 1,2-addition product or 1,4-addition product and as either the thermodynamic or kinetic product. (12 pts) H" catalyst H catalyst b) Consider the reaction of a nucleophile with conjugated carbonyl. Provide an example of a nucleophile that would favor the 1,2-addition product and explain why. Provide an example of a nucleophile that would favor the 1,4-addition product...
E2 Reaction 2. Draw all constitutional isomers formed in each E2 reaction and predict the major product using the Zaitsev rule. Be OH El Reaction 3. What alkene is the major product formed from each alkyl halide in an El reaction? 4. Label the mechanism as SN2, SN1, E2 or El. You do not have to draw the product(s). CHO CH3-C-CH2-CH CH
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using OH or RO in H20 or ROH. (Hint: the product of an aldol reaction is a B-hydroxy carbonyl compound or an a,b- unsaturated carbonyl compound. The a,ß-unsaturated carbonyl will be the major product unless elimination of H2O cannot form the conjugated system.) он Но, но Н,0 НО. ОН НО. он H, H НО. НО.
Predict the products of the following elimination reaction. Draw the major organic product formed in the following reaction. For the alcohol reaction below, give the major organic product.
Section 2 Predict the Product/Intermediate for each Organic Reaction Provide only the major organic product(s) formed for each reaction below. (0.5 pt. each) For Stereoisomers: If the reaction is diastereoselective then you must provide the correct relative configuration for the diastereomer(s) formed as a result of the reaction. Br2, CCL 2 eq. (CH3),COK, DMSO DBN Na, Liquid NH Nal, Acetone 2) OH, H202 Draw intermediate 1.0 eq. HB Draw Intermediate HgSo., H2SO., H,0
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using OH or RO in H20 or ROH. (Hint: the product of an aldol reaction is a B-hydroxy carbonyl compound or an a,b- unsaturated carbonyl compound. The a,ß-unsaturated carbonyl will be the major product unless elimination of H2O cannot form the conjugated system.) MeO- MeOH ale nie ma lonky Eto- Et0 EtOH MeO- MeOH Eto- EtOH MeO- walay Meo OMe bose MeOH
predict the major product for the following reaction
and draw the full mechanism for the product formation. (hint: aldol
condensation reaction)
NаОННО Н
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