Homework Answers
Ans 2 :
Bromine in CCl4 is used in the test for unsaturation . The bromine is initially reddish-brown in color , which when added to alkene , turns colorless. This color change indicates the presence of double bond in the molecule.
Cl2 when added to the alkenes , no significant color change is observed.
Hence Cl2 is not used in the test for unsaturation.
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2. Why don't we use Cl, instead of Br in the test for unsaturation? 3. Predict...
Solubility and Reactivity of Alkanes, Alkenes and Aromatic Compounds Advance Study Form *****There are 2 pages...
Solubility and Reactivity of Alkanes, Alkenes and Aromatic Compounds Advance Study Form *****There are 2 pages to this Advance Study Form ***** 1. a. The structure of cholesterol is shown below. Indicate if cholesterol is saturated or unsaturated. Explain your answer. b. What chemical tests would you run to determine if it saturated or unsaturated? Indicate what color changes you would expect. 2. Why don't we use Cl2 instead of Bra in the test for unsaturation? 3. Predict the product...
3. Predict the product of the following two reactions. If no reaction occurs, write no reaction....
3. Predict the product of the following two reactions. If no reaction occurs, write no reaction. KMnO d. Was the compound in part c oxidized or reduced? Explain your answer.
Predict the products for the following reactions: 5. Br 1. Mg, Et2O 2. (CH,)2CO 3. NH,Cl,...
Predict the products for the following reactions: 5. Br 1. Mg, Et2O 2. (CH,)2CO 3. NH,Cl, H20 a. NaCN, HCI b.
2 Number the co mpounds below in order of increasing reactivity towards Sn2 reaction. Br Cl...
2 Number the co mpounds below in order of increasing reactivity towards Sn2 reaction. Br Cl Circle the more nucleophilic of the two species below. CII,S) CI,SII Predict the product(s) of the reactions below, showing stereochemistry of the product and the starting halide CN Br S CH3 CN CH3S
2. In lab, we learned that Br makes a better leaving group than Cl. Do your...
2. In lab, we learned that Br makes a better leaving group than Cl. Do your results (how fast the reaction took place, if a reaction took place, how much participate was produced, etc.) agree with this? Explain. Give specific examples from your results. For the S1 reactions in this lab, what was the identity of the nucleophile? What was the solvent? What are the best types solvents for SN1 reactions. 4. For the S2 reactions in the lab, what...
worksheet torcyclohexene" 1. Why do we use H3PO4 instead of H2SO4 as a catalyst for the...
worksheet torcyclohexene" 1. Why do we use H3PO4 instead of H2SO4 as a catalyst for the synthesis of cyclohexene? (2 pts.) 2. Why do we use H3PO4 instead of HCl as a catalyst for the synthesis of cyclohexene? (3 pts.) 3. What alkeneſs) would be produced on dehydration of each of the following alcohols? If more than one product is possible, use Zaitsev's rule to predict which product would be formed in greater amounts. (9 pts.) Hz a) 2-methylcyclohexanol bi...
7. Provide a curved arrow mechanism and predict the product for the following SN2 reactions. (9 pts) Br H2N a) O Na b) C Cl NaCN c) 7. Provide a curved arrow mechanism and predict the produc...
7. Provide a curved arrow mechanism and predict the product for the following SN2 reactions. (9 pts) Br H2N a) O Na b) C Cl NaCN c)
7. Provide a curved arrow mechanism and predict the product for the following SN2 reactions. (9 pts) Br H2N a) O Na b) C Cl NaCN c)
POST-LAB QUESTIONS: 1. Predict the product of the following reactions. If no reaction occurs write "NR"...
POST-LAB QUESTIONS: 1. Predict the product of the following reactions. If no reaction occurs write "NR" CHs CHy CH CHs CH ning 2. Which test(s) would you use to distinguish between acetophenone and 3-pentanone? Explain why to receive credit. 3. Which test(s) would you use to distinguish between benzaldehyde and propanal? Explain why to receive credit. V_02 7
predict the major products of following reaction Na Cl Low Temp C-CI Br Br UV light...
predict the major products of following reaction
Na Cl Low Temp C-CI Br Br UV light UV light 10g1 1°= 1 2o 83 3° 1659 2° = 2.5 1) BH3 1) Hg(OAc)2/H20 2) H20VOH 2) NaBH4 KMnO4 OH
2. The following reaction will not work. Please explain why. cat. H-Br NH; solvent NH2 3....
2. The following reaction will not work. Please explain why. cat. H-Br NH; solvent NH2 3. Use your knowledge of mechanisms to predict the product for each reaction: LiAlH4 → ????? LiAlH4 ????
Solubility and Reactivity of Alkanes, Alkenes and Aromatic Compounds Advance Study Form *****There are 2 pages to this Advance Study Form ***** 1. a. The structure of cholesterol is shown below. Indicate if cholesterol is saturated or unsaturated. Explain your answer. b. What chemical tests would you run to determine if it saturated or unsaturated? Indicate what color changes you would expect. 2. Why don't we use Cl2 instead of Bra in the test for unsaturation? 3. Predict the product...
3. Predict the product of the following two reactions. If no reaction occurs, write no reaction. KMnO d. Was the compound in part c oxidized or reduced? Explain your answer.
Predict the products for the following reactions: 5. Br 1. Mg, Et2O 2. (CH,)2CO 3. NH,Cl, H20 a. NaCN, HCI b.
2 Number the co mpounds below in order of increasing reactivity towards Sn2 reaction. Br Cl Circle the more nucleophilic of the two species below. CII,S) CI,SII Predict the product(s) of the reactions below, showing stereochemistry of the product and the starting halide CN Br S CH3 CN CH3S
2. In lab, we learned that Br makes a better leaving group than Cl. Do your results (how fast the reaction took place, if a reaction took place, how much participate was produced, etc.) agree with this? Explain. Give specific examples from your results. For the S1 reactions in this lab, what was the identity of the nucleophile? What was the solvent? What are the best types solvents for SN1 reactions. 4. For the S2 reactions in the lab, what...
worksheet torcyclohexene" 1. Why do we use H3PO4 instead of H2SO4 as a catalyst for the synthesis of cyclohexene? (2 pts.) 2. Why do we use H3PO4 instead of HCl as a catalyst for the synthesis of cyclohexene? (3 pts.) 3. What alkeneſs) would be produced on dehydration of each of the following alcohols? If more than one product is possible, use Zaitsev's rule to predict which product would be formed in greater amounts. (9 pts.) Hz a) 2-methylcyclohexanol bi...
7. Provide a curved arrow mechanism and predict the product for the following SN2 reactions. (9 pts) Br H2N a) O Na b) C Cl NaCN c)
7. Provide a curved arrow mechanism and predict the product for the following SN2 reactions. (9 pts) Br H2N a) O Na b) C Cl NaCN c)
POST-LAB QUESTIONS: 1. Predict the product of the following reactions. If no reaction occurs write "NR" CHs CHy CH CHs CH ning 2. Which test(s) would you use to distinguish between acetophenone and 3-pentanone? Explain why to receive credit. 3. Which test(s) would you use to distinguish between benzaldehyde and propanal? Explain why to receive credit. V_02 7
predict the major products of following reaction
Na Cl Low Temp C-CI Br Br UV light UV light 10g1 1°= 1 2o 83 3° 1659 2° = 2.5 1) BH3 1) Hg(OAc)2/H20 2) H20VOH 2) NaBH4 KMnO4 OH
2. The following reaction will not work. Please explain why. cat. H-Br NH; solvent NH2 3. Use your knowledge of mechanisms to predict the product for each reaction: LiAlH4 → ????? LiAlH4 ????
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