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need help with 1-21
1) Label the steps below as "slow" and "fast". HCH 013 10...
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...
please answer all parts, thanks! 1. More substituted alkenes are more stable than less substituted alkenes....
please answer all parts, thanks!
1. More substituted alkenes are more stable than less substituted alkenes. Show the orbital overlap that helps to explain this observation. 2. Why is the heat of hydrogenation for an alkene exothermic? Analyze the bonds that are changing. AH = -30 kcal/mol Explain: + H2 3. Treating alkene "A" below with HBr can lead to a number of products. "A" SM + H-Br A bunch of products. For real, hella products. 3.A. Label the stereocenters...
8) Predict the product(s) of the following E2 reaction. Be sure to include solid wedges and...
8) Predict the product(s) of the following E2 reaction. Be sure to include solid wedges and dashed es on your product(s). Use conformational structures (the templates below) to show the mechanism and explain your reasoning Br CHCH ONa CH CH2OH, 70 °C Explanation(s): 9) Consider the E1 reaction of (3S)-3-bromo-2,3-dimethylpentane to form alkenes a) Draw the structure of the haloalkane (be sure to include stereochemistry). Clearly label any chiral carbon atoms with an asterisk ). b) Draw the structures of...
1-24 need help really lost Proton Transfer: deprotonation D. 1) Add the appropriate curved arrows for...
1-24 need help really lost
Proton Transfer: deprotonation D. 1) Add the appropriate curved arrows for the following deprotonation step. Also add the other product notice how the Tema s can be converted to this by use of a strong base such as sodium a sodium ion (Na) is not drawn, in this case it is just a spectatorio PCW27 - Mechanistic steps - Part Name: Time spent 2) Label the above compounds with the appropriate name from the previous...
Help on all parts of question 3 would be greatly appreciated! 3. Treating alkene "A" below...
Help on all parts of question 3 would be greatly
appreciated!
3. Treating alkene "A" below with HBr can lead to a number of products. "A" + H-Br A bunch of products. For real, hella products. 3.A. Label the stereocenters in compound "A" as R or S and label the alkene as E or Z. 3.B. Draw the curved arrow mechanism leading to the most stabilized carbo- cation intermediate. (don't do any rearrangements, just acid/base with the alkene) H-Br most...
Help and explain PLEASE!! - + Fit to page Page view In the reaction below, label...
Help and explain PLEASE!!
- + Fit to page Page view In the reaction below, label each product as "Zaitsev", "Hofmann", or "neither" Zaitsev/ Hofmann. Note that more than one product can have the same designation. CH, CH LOH H,SO heat Determine if each of the structures below is a possible product for the reaction. If the product is possible, determine if it is the result of a rearrangement. Which product is the Zaitsev product? Which product is the Hofmann...
1. A) Show each possible product for the reaction below and predict the major product. Be...
1. A) Show each possible product for the reaction below and predict the major product. Be sure. to include all geometric isomers. (1 pt) b Na B) Draw the rotamer that leads to the major product for the reaction above as a Newman projection. (1 pt) 2. Circle the substrates which can undergo elimination through the E2 mechanism. (Hint: substrates may not be drawn in the proper conformation for an E2 reaction). (0.5 pts) to x Kto 3. Circle the...
1 points for each of the following reactions, identify the nucleophile and the decophile and dew...
1 points for each of the following reactions, identify the nucleophile and the decophile and dew the electron motion s required to generate the product given HOCH, HOCH, OH OCH,CH, OCH.CH Br 2 4 points) The spectrum above was measured on a sample with molecular formula C.H.CIO, In the bone in the middle of the spectrum, draw the structure of a compound with this formula that is consistent with the spectrum above there are quite a few structures that would...
(C) Protonation of alkene to form a carbocation followed by addition of bromide ion (D) Addition...
(C) Protonation of alkene to form a carbocation followed by addition of bromide ion (D) Addition of the proton to one face of the alkene with simultaneous delivery of a bromide ion from a different molecule of H-Br. 11. Which compound is the strongest nmucleophile for reaction of methane methanesulfonate (CHOS0.CH) in methanol at room temperature? (You may assume that everything is soluble in methanol) (A) potassium bromide (B) cesium iodide (C) sodiam chloride (D) lithium flaoride 12. Which proton...
Questions 2-10 please!! 1) A substitution reaction is: [2] a) A reaction during which an OH...
Questions 2-10 please!!
1) A substitution reaction is: [2] a) A reaction during which an OH group of a molecule is replaced by a halogen. b) A reaction during which water is the leaving group. c) A reaction during which a functional group of a molecule is replaced by an electrophile. d) A reaction during which a functional group of a molecule is replaced by another functional group. V 12 2) Substitution reactions are classified either as electrophilic or nucleophilic...
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...
please answer all parts, thanks!
1. More substituted alkenes are more stable than less substituted alkenes. Show the orbital overlap that helps to explain this observation. 2. Why is the heat of hydrogenation for an alkene exothermic? Analyze the bonds that are changing. AH = -30 kcal/mol Explain: + H2 3. Treating alkene "A" below with HBr can lead to a number of products. "A" SM + H-Br A bunch of products. For real, hella products. 3.A. Label the stereocenters...
8) Predict the product(s) of the following E2 reaction. Be sure to include solid wedges and dashed es on your product(s). Use conformational structures (the templates below) to show the mechanism and explain your reasoning Br CHCH ONa CH CH2OH, 70 °C Explanation(s): 9) Consider the E1 reaction of (3S)-3-bromo-2,3-dimethylpentane to form alkenes a) Draw the structure of the haloalkane (be sure to include stereochemistry). Clearly label any chiral carbon atoms with an asterisk ). b) Draw the structures of...
1-24 need help really lost
Proton Transfer: deprotonation D. 1) Add the appropriate curved arrows for the following deprotonation step. Also add the other product notice how the Tema s can be converted to this by use of a strong base such as sodium a sodium ion (Na) is not drawn, in this case it is just a spectatorio PCW27 - Mechanistic steps - Part Name: Time spent 2) Label the above compounds with the appropriate name from the previous...
Help on all parts of question 3 would be greatly
appreciated!
3. Treating alkene "A" below with HBr can lead to a number of products. "A" + H-Br A bunch of products. For real, hella products. 3.A. Label the stereocenters in compound "A" as R or S and label the alkene as E or Z. 3.B. Draw the curved arrow mechanism leading to the most stabilized carbo- cation intermediate. (don't do any rearrangements, just acid/base with the alkene) H-Br most...
Help and explain PLEASE!!
- + Fit to page Page view In the reaction below, label each product as "Zaitsev", "Hofmann", or "neither" Zaitsev/ Hofmann. Note that more than one product can have the same designation. CH, CH LOH H,SO heat Determine if each of the structures below is a possible product for the reaction. If the product is possible, determine if it is the result of a rearrangement. Which product is the Zaitsev product? Which product is the Hofmann...
1. A) Show each possible product for the reaction below and predict the major product. Be sure. to include all geometric isomers. (1 pt) b Na B) Draw the rotamer that leads to the major product for the reaction above as a Newman projection. (1 pt) 2. Circle the substrates which can undergo elimination through the E2 mechanism. (Hint: substrates may not be drawn in the proper conformation for an E2 reaction). (0.5 pts) to x Kto 3. Circle the...
1 points for each of the following reactions, identify the nucleophile and the decophile and dew the electron motion s required to generate the product given HOCH, HOCH, OH OCH,CH, OCH.CH Br 2 4 points) The spectrum above was measured on a sample with molecular formula C.H.CIO, In the bone in the middle of the spectrum, draw the structure of a compound with this formula that is consistent with the spectrum above there are quite a few structures that would...
(C) Protonation of alkene to form a carbocation followed by addition of bromide ion (D) Addition of the proton to one face of the alkene with simultaneous delivery of a bromide ion from a different molecule of H-Br. 11. Which compound is the strongest nmucleophile for reaction of methane methanesulfonate (CHOS0.CH) in methanol at room temperature? (You may assume that everything is soluble in methanol) (A) potassium bromide (B) cesium iodide (C) sodiam chloride (D) lithium flaoride 12. Which proton...
Questions 2-10 please!!
1) A substitution reaction is: [2] a) A reaction during which an OH group of a molecule is replaced by a halogen. b) A reaction during which water is the leaving group. c) A reaction during which a functional group of a molecule is replaced by an electrophile. d) A reaction during which a functional group of a molecule is replaced by another functional group. V 12 2) Substitution reactions are classified either as electrophilic or nucleophilic...
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