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Name 1. Classify the following substrates as 1º, 2º, 3º, aryl, allylie, or benzylie: 8 8...
What is the effect of structure (1º, 2º, or 3º leaving group) on reaction rate of...
What is the effect of structure (1º, 2º, or 3º leaving group) on reaction rate of SN1 and SN2 reactions?
CHEM 2123/Pre-Lab Study Questions /Exp. #6 Reactivities of Alkyl Halides in Nucleophilic Subs. Reactions Amonda salas...
CHEM 2123/Pre-Lab Study Questions /Exp. #6 Reactivities of Alkyl Halides in Nucleophilic Subs. Reactions Amonda salas Name 1. Classify the following substrates as 1°, 2, 3, aryl, allylic, or benzy lic: CH OCH CHB сна 2. Identify the substrate, nucleophile/base, and the leaving group in the following reactions and indicate the type of reaction (i.e. SN1, SN2, EI, E2) taking place: Br Nal Accionc H.с н.с Нас, CH,OH HEAT сH,он CH-Br Н-о CH CHs CH,CH-ONa HEAT Нс CH3 3. Rank...
1. Classify each halogen in every molecule below as: 1º, 2º, 3º, allylic, benzylic, vinyl, or...
1. Classify each halogen in every molecule below as: 1º, 2º, 3º, allylic, benzylic, vinyl, or aryl. od five 2. Numerically rank the radical species below in order of increasing stability. ki im. ^. its 3. Draw all relevant resonance structure for each of the radical species shown below. oder 4. Predict the major product for the radical chlorination reactions shown below.
(3 pt) For the following reactions: a) Label the substrate (1°, 2°, 3°), reagent (Good/Poor Nu,...
(3 pt) For the following reactions:
a) Label the substrate (1°, 2°, 3°), reagent (Good/Poor Nu,
Strong/Weak Base) and solvent (protic, aprotic).
b) Determine what mechanism will predominate (SN1, SN2, E1, or
E2).
c) Draw the product(s) you would expect to form, paying
attention to regioselectivity and stereoselectivity.
4. (3 pt) For the following reactions: a) Label the substrate (1º, 2º, 3º), reagent (Good/Poor Nu, Strong/Weak Base) and solvent (protic, aprotic). b) Determine what mechanism will predominate (SN1, SN2, E1,...
multiple choice questions! 11. What type of reaction would you predict the following to undergo? Ans....
multiple choice questions!
11. What type of reaction would you predict the following to undergo? Ans. li + NH3 CH3CN ► ? (A) SN1 (B) E1 (C) E2 (D) SN2 12. Which of the following factors will NOT promote an SN1 reaction? Ans. (A) a polar, protic solvent (B) a 3º substrate (C) a strong nucleophile (D) a good leaving group 13. Which one of the following compounds can show cis/trans- isomerism? Ans. (A) 1,1-dimethylcyclopentane (B) 1-ethyl-2-methylcyclobutane (C) 1,1,4-trimethylcyclohexane (D)...
Draw the strcture of all substrates you will be using in this reaction and classify them...
Draw the strcture of all substrates you will be using in this
reaction and classify them as( primary, Secondary, and tertiary)
aryl bezylic or some combination of these (such as primary
bezylic). Identify the nucleophile, substrate, and leaving group in
general equations for reactions 1 and 2
ORRAS sminilah you dimensions (R) or (S), and show their stereochemistry clearly. If your instructor reguests, obtain another set of atoms and connectors and use it to prepare isomers as well. R eal...
8. complete the following reactions. mention the type of mechanism (SN1,SN2, E1, or E2) that each...
8. complete the following reactions. mention the type of
mechanism (SN1,SN2, E1, or E2) that each follows
8. Complete the following reactions. Mention the type of mechanism (SNI, SN2, E1 or E2) that each reaction follows. (4) (CHy)COH 100°C Br a) Cl Xiocn, NaOCH3 Heat CH3 b) Cl CH3ONa CH3OH,100°C CH3
1) Compare and contrast SN1, SN2, E1, and E2 reactions! (similarities abd differences. Requirements for each...
1) Compare and contrast SN1, SN2, E1, and E2 reactions!
(similarities abd differences. Requirements for each to
work.)
2) Why is SN2 is in direct competition with E2 while SN1 is
direct competition with E1 reaction.
3) Rate expression of each
4) which reactions are concerted? Which are atep wise?
5) which are sterospecific and what stereospecificity of each
are?
6) how do the variables below (A-D) influence reaction
pathway?
Compare and contrast SNI, SN2, El and E2 reactions. What...
Determine if each of the following statements is true or false 1 Larger atoms are better...
Determine if each of the following statements is true or false 1 Larger atoms are better nucleophiles due to polarizability. 2 The identity of the nucleophile affects the rate of an SN1 reaction. 3 SN2 reactions proceed via frontside attack. 4 Bimolecular reactions tend to be stereoselective. 5 SN2 reactions invert all stereocenters in a haloalkane. 6 Cl-, OH-, and...
5. REACTIONS (30PTS, 6PT EA): For the following reactions indicate what substituted alkyl halide sol are...
5. REACTIONS (30PTS, 6PT EA): For the following reactions indicate what substituted alkyl halide sol are provided and choose indicated reaction conditions, 2) then provide the major product or indicate dicate what substituted alkyl halide, solvent, and nucleopa cmajor product or indicate NO REACTION Closed Inuci NaOEt alkoi halide: 1.1.3 Salt Polar Proti Polar Agrote Noclegile strong wak Br EtOH Of Shade one — SI E2 S 2 EI Circle one cach alky balide 1º, 2º, 3º Solvent Polar Prote/Polar...
CHEM 2123/Pre-Lab Study Questions /Exp. #6 Reactivities of Alkyl Halides in Nucleophilic Subs. Reactions Amonda salas Name 1. Classify the following substrates as 1°, 2, 3, aryl, allylic, or benzy lic: CH OCH CHB сна 2. Identify the substrate, nucleophile/base, and the leaving group in the following reactions and indicate the type of reaction (i.e. SN1, SN2, EI, E2) taking place: Br Nal Accionc H.с н.с Нас, CH,OH HEAT сH,он CH-Br Н-о CH CHs CH,CH-ONa HEAT Нс CH3 3. Rank...
1. Classify each halogen in every molecule below as: 1º, 2º, 3º, allylic, benzylic, vinyl, or aryl. od five 2. Numerically rank the radical species below in order of increasing stability. ki im. ^. its 3. Draw all relevant resonance structure for each of the radical species shown below. oder 4. Predict the major product for the radical chlorination reactions shown below.
(3 pt) For the following reactions:
a) Label the substrate (1°, 2°, 3°), reagent (Good/Poor Nu,
Strong/Weak Base) and solvent (protic, aprotic).
b) Determine what mechanism will predominate (SN1, SN2, E1, or
E2).
c) Draw the product(s) you would expect to form, paying
attention to regioselectivity and stereoselectivity.
4. (3 pt) For the following reactions: a) Label the substrate (1º, 2º, 3º), reagent (Good/Poor Nu, Strong/Weak Base) and solvent (protic, aprotic). b) Determine what mechanism will predominate (SN1, SN2, E1,...
multiple choice questions!
11. What type of reaction would you predict the following to undergo? Ans. li + NH3 CH3CN ► ? (A) SN1 (B) E1 (C) E2 (D) SN2 12. Which of the following factors will NOT promote an SN1 reaction? Ans. (A) a polar, protic solvent (B) a 3º substrate (C) a strong nucleophile (D) a good leaving group 13. Which one of the following compounds can show cis/trans- isomerism? Ans. (A) 1,1-dimethylcyclopentane (B) 1-ethyl-2-methylcyclobutane (C) 1,1,4-trimethylcyclohexane (D)...
Draw the strcture of all substrates you will be using in this
reaction and classify them as( primary, Secondary, and tertiary)
aryl bezylic or some combination of these (such as primary
bezylic). Identify the nucleophile, substrate, and leaving group in
general equations for reactions 1 and 2
ORRAS sminilah you dimensions (R) or (S), and show their stereochemistry clearly. If your instructor reguests, obtain another set of atoms and connectors and use it to prepare isomers as well. R eal...
8. complete the following reactions. mention the type of
mechanism (SN1,SN2, E1, or E2) that each follows
8. Complete the following reactions. Mention the type of mechanism (SNI, SN2, E1 or E2) that each reaction follows. (4) (CHy)COH 100°C Br a) Cl Xiocn, NaOCH3 Heat CH3 b) Cl CH3ONa CH3OH,100°C CH3
1) Compare and contrast SN1, SN2, E1, and E2 reactions!
(similarities abd differences. Requirements for each to
work.)
2) Why is SN2 is in direct competition with E2 while SN1 is
direct competition with E1 reaction.
3) Rate expression of each
4) which reactions are concerted? Which are atep wise?
5) which are sterospecific and what stereospecificity of each
are?
6) how do the variables below (A-D) influence reaction
pathway?
Compare and contrast SNI, SN2, El and E2 reactions. What...
5. REACTIONS (30PTS, 6PT EA): For the following reactions indicate what substituted alkyl halide sol are provided and choose indicated reaction conditions, 2) then provide the major product or indicate dicate what substituted alkyl halide, solvent, and nucleopa cmajor product or indicate NO REACTION Closed Inuci NaOEt alkoi halide: 1.1.3 Salt Polar Proti Polar Agrote Noclegile strong wak Br EtOH Of Shade one — SI E2 S 2 EI Circle one cach alky balide 1º, 2º, 3º Solvent Polar Prote/Polar...
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