Homework Answers
Nucleophilicity depends on the three factors mentioned above.
CH3S- will be the most nucleophic as S is more polarizable than Oxygen. Also alkyl group attached increases the electron density on Suphur.
Acyl anion is a good leaving group and hence a weak base. So it will be a weak nucleophile.
BF3 is an electron deficient species hence it is a elcetrophile not a nucleophile.
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Question 19 (4 points) Which of the following compounds is the most nucleophilic? O A) HO-...
HO form Which of the following compounds is most reactive towards hudleophilic addition rxns? a) lo...
HO form Which of the following compounds is most reactive towards hudleophilic addition rxns? a) lo i isla ally e) ye • The first step of nucleophilic acyl substitutions I attack of a carbonyl group to intermediate a) electrophilic trigonal c) electrophilic, tetrahedral b) nucleophilic trigonal. d) nucleophilic, tetrahedral Provide the necessary reagents to carry out the Kollowing conversson. a) 1. (CH₃)₂ Culi 2. H₂O b) l. excess DIBAHZ. H₂O ~оси, c)l. excess CH ₂ Mg Br 2. H₂O d)...
Question 28 Which of the following compounds is most reactive towards a nucleophilic addition reaction? o...
Question 28 Which of the following compounds is most reactive towards a nucleophilic addition reaction? o e H Н H 1 11 IV II III IV V FO F10 FB F7 F6 F5 F4 F2 F3 * A & @ $ % 5 7 LO 8 3 4 N
please help!! thank you! Which of the following compounds is most reactive towards nucleophilic addition reaction?...
please help!! thank you!
Which of the following compounds is most reactive towards nucleophilic addition reaction? H1 H H A B С D E Predict the product for the following reaction sequence. iii PBrz Mg/ether Н H Cr04 ОН 2. Hz0+ A. 6,7-dimethyl-3-nonanol B. 6,7-dimethyl-3-nonanone C. 6,7-dimethyl-3-nonanal D. 3,4-dimethyl-7-nonanol E. 3,4-dimethyl-7-nonanone Predict the product for the following reaction 1. LiAlH4 (excess) 2. H30* OH OH OH -Н HO B с D Provide the structure of the ylide needed to prepare...
Question 11 of 19 1 Points Which pair of compounds is most likely to be completely...
Question 11 of 19 1 Points Which pair of compounds is most likely to be completely miscible with one another? The term "miscible" means soluble in all proportions -- no matter how much solute is added to the solvent, a homogeneous mixture (a solution) will result. A. hexane (CH2) and water B. methanol (CH,OH) and water C. table sugar (sucrose, C12H3201) and water D. sodium chloride (NaCl) and water Reset Selection
16. Which nucleophilic substitution reaction would be unlikely to occur? A) HO + CH3CH2-1 - CH3CH2-OH...
16. Which nucleophilic substitution reaction would be unlikely to occur? A) HO + CH3CH2-1 - CH3CH2-OH + 1 B) I + CH3CH2-H – CH3CH2-I + H C) CHS + CH3-Br CH3S-CH3 + Br D) All of the above E) None of the above
QUESTION 19 Which of the following compounds are aromatic? Choose all possible compounds. Assume all completely...
QUESTION 19 Which of the following compounds are aromatic? Choose all possible compounds. Assume all completely conjugated rings are planar. Coop oooo a, cd a, b, d, e b,cd a, b,c,d QUESTION 20 Save All Answers Close me Click Save and submit to save and submit. Click Save All Answers to save all answers QUESTION 20 Rank the following compounds in order of increasing reactivity in nucleophilic acyl substitution (from least to most OMe NH2 | CAB Β< <Α С...
QUESTION 10 Which of the following compounds can be prepared using the Dieckmann condensation? o HO...
QUESTION 10 Which of the following compounds can be prepared using the Dieckmann condensation? o HO IV A. I and IV B. IV C. III D. 11 O E. QUESTION 11 Which of the following is a primary amine? O A. (CH3CH2)3N B. CH3CH2NHCH2CH(CH3)2 C. (CH3CH2)2NCH2CH(CH3)2 OD. (CH3CH2)4N OH E. CH3CH2CH2CH2NH2
Question 19 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction?...
Question 19 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction? Br BI Br Br 1 I! II! IV oa) III ob) IV OC) 11 od) 1 Question 20 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a to d is expected to have the lowest bond dissociation energy? HU Hd Oa) C-Hb ob) C-HC Oc) C-Hd od) C-Ha
Of the following compounds, circle the one that is most reactive towards nucleophilic acyl substitution and...
Of the
following compounds, circle the one that is most reactive towards
nucleophilic acyl substitution and underline the least reactive
one
Of the following compounds, CIRCLE the one that is MOST reactive toward 1.(2 pts) nucleophilic acyl substitution and underline the least reactive one. CH CH2COH CHjCH2COCCH CHCH2COCH3 (CH3) CCoCH3 3 2 CH, CTI, CNH2 CH,CH2 2.(2 pts each) Reactions. Provide the appropriate reactant, reagent, or product(s) as required. If more than one product is formed, indicate which is major....
Question 45 (2 points) For which of the following compounds will the M+2 peak intensity be...
Question 45 (2 points) For which of the following compounds will the M+2 peak intensity be equal to the intensity of the molecular ion peak M? O a) CH3CH2CH2NH2 Ob) CH3CH2CH2Br Oc) CH3CH2CH2CI d) CH3CH2CH2OH Question 46 (2 points) Saved Predict the major product(s) of the following reaction. Br2 light te: Br Br CH,Br. ICH Br -CH2Br BI III IV Br O a) IV Ob) III Oc) 11 d) 1
HO form Which of the following compounds is most reactive towards hudleophilic addition rxns? a) lo i isla ally e) ye • The first step of nucleophilic acyl substitutions I attack of a carbonyl group to intermediate a) electrophilic trigonal c) electrophilic, tetrahedral b) nucleophilic trigonal. d) nucleophilic, tetrahedral Provide the necessary reagents to carry out the Kollowing conversson. a) 1. (CH₃)₂ Culi 2. H₂O b) l. excess DIBAHZ. H₂O ~оси, c)l. excess CH ₂ Mg Br 2. H₂O d)...
Question 28 Which of the following compounds is most reactive towards a nucleophilic addition reaction? o e H Н H 1 11 IV II III IV V FO F10 FB F7 F6 F5 F4 F2 F3 * A & @ $ % 5 7 LO 8 3 4 N
please help!! thank you!
Which of the following compounds is most reactive towards nucleophilic addition reaction? H1 H H A B С D E Predict the product for the following reaction sequence. iii PBrz Mg/ether Н H Cr04 ОН 2. Hz0+ A. 6,7-dimethyl-3-nonanol B. 6,7-dimethyl-3-nonanone C. 6,7-dimethyl-3-nonanal D. 3,4-dimethyl-7-nonanol E. 3,4-dimethyl-7-nonanone Predict the product for the following reaction 1. LiAlH4 (excess) 2. H30* OH OH OH -Н HO B с D Provide the structure of the ylide needed to prepare...
Question 11 of 19 1 Points Which pair of compounds is most likely to be completely miscible with one another? The term "miscible" means soluble in all proportions -- no matter how much solute is added to the solvent, a homogeneous mixture (a solution) will result. A. hexane (CH2) and water B. methanol (CH,OH) and water C. table sugar (sucrose, C12H3201) and water D. sodium chloride (NaCl) and water Reset Selection
16. Which nucleophilic substitution reaction would be unlikely to occur? A) HO + CH3CH2-1 - CH3CH2-OH + 1 B) I + CH3CH2-H – CH3CH2-I + H C) CHS + CH3-Br CH3S-CH3 + Br D) All of the above E) None of the above
QUESTION 19 Which of the following compounds are aromatic? Choose all possible compounds. Assume all completely conjugated rings are planar. Coop oooo a, cd a, b, d, e b,cd a, b,c,d QUESTION 20 Save All Answers Close me Click Save and submit to save and submit. Click Save All Answers to save all answers QUESTION 20 Rank the following compounds in order of increasing reactivity in nucleophilic acyl substitution (from least to most OMe NH2 | CAB Β< <Α С...
QUESTION 10 Which of the following compounds can be prepared using the Dieckmann condensation? o HO IV A. I and IV B. IV C. III D. 11 O E. QUESTION 11 Which of the following is a primary amine? O A. (CH3CH2)3N B. CH3CH2NHCH2CH(CH3)2 C. (CH3CH2)2NCH2CH(CH3)2 OD. (CH3CH2)4N OH E. CH3CH2CH2CH2NH2
Question 19 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction? Br BI Br Br 1 I! II! IV oa) III ob) IV OC) 11 od) 1 Question 20 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a to d is expected to have the lowest bond dissociation energy? HU Hd Oa) C-Hb ob) C-HC Oc) C-Hd od) C-Ha
Of the
following compounds, circle the one that is most reactive towards
nucleophilic acyl substitution and underline the least reactive
one
Of the following compounds, CIRCLE the one that is MOST reactive toward 1.(2 pts) nucleophilic acyl substitution and underline the least reactive one. CH CH2COH CHjCH2COCCH CHCH2COCH3 (CH3) CCoCH3 3 2 CH, CTI, CNH2 CH,CH2 2.(2 pts each) Reactions. Provide the appropriate reactant, reagent, or product(s) as required. If more than one product is formed, indicate which is major....
Question 45 (2 points) For which of the following compounds will the M+2 peak intensity be equal to the intensity of the molecular ion peak M? O a) CH3CH2CH2NH2 Ob) CH3CH2CH2Br Oc) CH3CH2CH2CI d) CH3CH2CH2OH Question 46 (2 points) Saved Predict the major product(s) of the following reaction. Br2 light te: Br Br CH,Br. ICH Br -CH2Br BI III IV Br O a) IV Ob) III Oc) 11 d) 1
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