Homework Answers
In 3 dimensional space, the oxygen of Tetrahydofuran (diene) exists out of the plane (as shown in image above).
In Diel's-Alder reaction, diene exist in s-cisoid conformation. It follows a concerted mechanism where double bond of dienophile attacks the first carbon (having double bond) of the diene. From there, the electrons of double bond shifts at position C2-C3 and pushes the electron of C3-C4 to attack on second carbon of the dienophile.
In this process, 2 weak pi bonds are broken and 2 new strong sigma bonds are formed and position of one of the pi bond changes.
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Can someone show me the mechanism for this and explain to me how they got it. I dont undertsand what is happening. Than...
For the part that is circle, can somone show me the mechanism and explain how tetrafuran is derived from 4FS. Also, expl...
For
the part that is circle, can somone show me the mechanism and
explain how tetrafuran is derived from 4FS. Also, explain and
show mechansim on how DPBM serve as building blocks for
crossedlink polymer via diel alder. Thank you!
4FS hao DPBM Figure 2. Tetrafuran derived from pentaerythritol (4FS) and diphenyl bismaleimide (DPBM) serve as building blocks for a cross-linked polymer via Diels-Alder reaction.
Can someone take me through the mechanism of this reaction, in particular what is happening in...
Can
someone take me through the mechanism of this reaction, in
particular what is happening in the first step? What does H2S do?
Chapter 20 Topic: Reaction Products 27. What is the final product of the following sequence ofr HOS, NH i. HONO, 5°C O2N Final product EtOH ii. KI NO A) 1-Iodo-3-nitrobenzene B) 3-Nitroaniline C) 3-Nitrophenol D) 3-Nitrosoaniline 3-Nitrosophenol E) Ans: A MacBook Air
Can someone help out and explain this to me? one of the following compounds would not...
Can someone help out and explain this to me?
one of the following compounds would not react well as the dienophile in a classical Diels-Alder reaction
16.42 please I dont understand A and if you could show the resonance as well. thanks...
16.42 please I dont understand A and if you could show the
resonance as well. thanks
16.41 The absorbance spectrum of 1,3-butadiene displays an absorp- tion in the UV region (Amax=217 nm), while the absorption spectrum of 1,2-butadiene does not display a similar absorption. Explain. 16.42 Predict the products for each of the following Diels-Alder reactions: O HOOO COOHD Hoocan MeO ON 16.43 Identify the reagents you would use to prepare each of the following compounds via a Diels-Alder reaction...
Can someone explain in words how this mechanism works? I would just like to understand the...
Can someone explain in words how this mechanism works? I would
just like to understand the problems better. Thank you!
for example: I dont understand where the oxygen molecule
"disappears" to in the first reaction
1) show how the secondary amine can be I prepared by a successive reductive aminations: ammonium D AHS Dit H /Pd -NH2 Ha/ed ܬܕܢ ܓܓܢܬ
Can someone please explain to me how to interpret this NMR data? It is the Diels...
Can someone please explain to me how to interpret this NMR
data? It is the Diels Alder Reaction of 9-anthracenemethanol and
N-methylmaleimide.
IR
data*
% Transmittance 4000 85 90 Joe_lan_Diels Alder product 3500 3486.04 3000 3069.03 2500 Wavenumbers (em-1) 2000 1766.39 1681.46 1500 1474.36 1465 21 145551 1432.70 138293 1318.30 1295.54 1282.09 1209.16 1000 1141.30 112079 1093.75 1073.64 1053.18 976.96 965.76 1032.33 888.92 353 62 769.28 747 86 722.40 659.26 500
Can someone show me the mechanism for this reaction please!
Can someone show me the mechanism for this reaction
please!
can someone show me how to do this and explain this to me 0 IUINU nations...
can someone show me how to do this and explain this to me
0 IUINU nations favor the Snl mechanism as opposed to the Sn2 mechanism? I. tertiary alkyl halide II. primary alkyl halide III. polar solvent A. only 1 B. only II C. I and III D. II and III
Can someone explain to me how I got the wrong answer. Should I not have rounded...
Can someone explain to me how I got the wrong answer. Should I
not have rounded it?
Incorrect Question 6 0/2 pts Calculate the rms velocity (m/s) of CO2 at 76°C. Enter your answer as an integer. 141
Can someone show me this mechanism please and explain the underlying process? Thank you 25. Which...
Can someone show me this mechanism please and explain the
underlying process? Thank you
25. Which of the following is the product of the reaction below? NaOEt, EtOH но IV E. None of the above.
For
the part that is circle, can somone show me the mechanism and
explain how tetrafuran is derived from 4FS. Also, explain and
show mechansim on how DPBM serve as building blocks for
crossedlink polymer via diel alder. Thank you!
4FS hao DPBM Figure 2. Tetrafuran derived from pentaerythritol (4FS) and diphenyl bismaleimide (DPBM) serve as building blocks for a cross-linked polymer via Diels-Alder reaction.
Can
someone take me through the mechanism of this reaction, in
particular what is happening in the first step? What does H2S do?
Chapter 20 Topic: Reaction Products 27. What is the final product of the following sequence ofr HOS, NH i. HONO, 5°C O2N Final product EtOH ii. KI NO A) 1-Iodo-3-nitrobenzene B) 3-Nitroaniline C) 3-Nitrophenol D) 3-Nitrosoaniline 3-Nitrosophenol E) Ans: A MacBook Air
Can someone help out and explain this to me?
one of the following compounds would not react well as the dienophile in a classical Diels-Alder reaction
16.42 please I dont understand A and if you could show the
resonance as well. thanks
16.41 The absorbance spectrum of 1,3-butadiene displays an absorp- tion in the UV region (Amax=217 nm), while the absorption spectrum of 1,2-butadiene does not display a similar absorption. Explain. 16.42 Predict the products for each of the following Diels-Alder reactions: O HOOO COOHD Hoocan MeO ON 16.43 Identify the reagents you would use to prepare each of the following compounds via a Diels-Alder reaction...
Can someone explain in words how this mechanism works? I would
just like to understand the problems better. Thank you!
for example: I dont understand where the oxygen molecule
"disappears" to in the first reaction
1) show how the secondary amine can be I prepared by a successive reductive aminations: ammonium D AHS Dit H /Pd -NH2 Ha/ed ܬܕܢ ܓܓܢܬ
Can someone please explain to me how to interpret this NMR
data? It is the Diels Alder Reaction of 9-anthracenemethanol and
N-methylmaleimide.
IR
data*
% Transmittance 4000 85 90 Joe_lan_Diels Alder product 3500 3486.04 3000 3069.03 2500 Wavenumbers (em-1) 2000 1766.39 1681.46 1500 1474.36 1465 21 145551 1432.70 138293 1318.30 1295.54 1282.09 1209.16 1000 1141.30 112079 1093.75 1073.64 1053.18 976.96 965.76 1032.33 888.92 353 62 769.28 747 86 722.40 659.26 500
Can someone show me the mechanism for this reaction
please!
can someone show me how to do this and explain this to me
0 IUINU nations favor the Snl mechanism as opposed to the Sn2 mechanism? I. tertiary alkyl halide II. primary alkyl halide III. polar solvent A. only 1 B. only II C. I and III D. II and III
Can someone explain to me how I got the wrong answer. Should I
not have rounded it?
Incorrect Question 6 0/2 pts Calculate the rms velocity (m/s) of CO2 at 76°C. Enter your answer as an integer. 141
Can someone show me this mechanism please and explain the
underlying process? Thank you
25. Which of the following is the product of the reaction below? NaOEt, EtOH но IV E. None of the above.
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