what's the principles and of Electron-withdrawing groups and Electron-donating groups , why they give or accept elec...
what's the principles and of Electron-withdrawing groups and Electron-donating groups , why they give or accept electrons , especially in aromatic ring that act both donating and withdrawing? and please numerate members of each groups briefly?
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what's the principles and of Electron-withdrawing groups and Electron-donating groups , why they give or accept elec...
What roles do electron withdrawing groups and electron donating groups play? (i.e., do they activate the...
What roles do electron withdrawing groups and electron donating groups play? (i.e., do they activate the diene or dienophile?
Identify the substituent groups on the alkenes below as electron withdrawing or electron donating by putting...
Identify the substituent groups on the alkenes below as electron
withdrawing or electron donating by putting EWG or EDG after the
structure letter.
CN A B с D E
3. (2 points) Which of the following compounds have electron withdrawing (EWG) or electron donating groups...
3. (2 points) Which of the following compounds have electron withdrawing (EWG) or electron donating groups (EDG)? Circle the positions that will be activated/deactivated?
1. For the following compounds, label each substituent as electron donating or electron withdrawing, and indicate...
1. For the following compounds, label each substituent as electron donating or electron withdrawing, and indicate whether this effect is achieved via induction or resonance. ŅO2 H2N SO3H 2. Predict the TH NMR of the above benzene derivatives. For chemical shift, indicate whether the peak would likely be downfield or upfield of benzene (7.2 ppm). (Hint: think about the resonance structures that can be drawn based on your responses from above) A B # of peaks chemical shift indicate: >7.2,...
3. (2 points) Which of the following compounds have electron withdrawing (EWG) or electron donating groups...
3. (2 points) Which of the following compounds have electron withdrawing (EWG) or electron donating groups (EDG)? Circle the positions that will be activated/deactivated? NH2 NO₂
How are methyl groups electron donating to the phenyl ring? Give a detailed explanation.
How are methyl groups electron donating to the phenyl ring? Give a detailed explanation.
Which of the following are electron donating groups? -CH -NO, -COCH O-OCH - NHCOCH -CN Question...
Which of the following are electron donating groups? -CH -NO, -COCH O-OCH - NHCOCH -CN Question 2 2 Which of the functional groups can act as a hydrogen bond donor? Select all that apply Carboxylic acid Alcohol D Amine Ester Aromatic ring Ether Amide Ketone
. In addition to the deshielding attributes of electron withdrawing groups, π-conjugation or arom...
. In addition to the deshielding attributes of electron withdrawing groups, π-conjugation or aromatic moieties have a substantial deshielding effect on protons in NMR. The physical reasoning for this effect has to do with the fact that the externally applied Bo magnetic field induces delocalized electron currents in the π orbitals, which in turn generate their own magnetic field that adds constructively to the strength of Bo at the location of protons in the plane of conjugation. This effect is...
Help a) Draw a complete mechanism showing how t-butanol is first converted into an electrophile and...
Help
a) Draw a complete mechanism showing how t-butanol is first converted into an electrophile and then how the electrophile is attached to the aromatic ring. b) What is meant by electron donating and electron withdrawing groups on an aromatic ring? Is the methoxy group an EWG or EDG? Is a t-butyl group an EWG or EDG? c) Two equivalents of t-butanol are used in this reaction. What is the likely problem if only one equivalent of t-butanol is used?...
1. please check what is wrong. Thank you! Determine the product formed when each compound is treated with...
1. please check what is wrong. Thank you!
Determine the product formed when each compound is treated with Br2 and FeBr3. Drag the atom labels to their appropriate positions. CN Atom labels H H Br Br2 A. FeBr Br H OH OH Br Br. Br2 FeBr3 H H Br Br H Br2 FeBr H1 H Reset T Rank the compounds in each group in order of decreasing reactivity in electrophilic aromatic substitution. CI Decreasing reactivity Rank the compounds in each...
Identify the substituent groups on the alkenes below as electron
withdrawing or electron donating by putting EWG or EDG after the
structure letter.
CN A B с D E
3. (2 points) Which of the following compounds have electron withdrawing (EWG) or electron donating groups (EDG)? Circle the positions that will be activated/deactivated?
1. For the following compounds, label each substituent as electron donating or electron withdrawing, and indicate whether this effect is achieved via induction or resonance. ŅO2 H2N SO3H 2. Predict the TH NMR of the above benzene derivatives. For chemical shift, indicate whether the peak would likely be downfield or upfield of benzene (7.2 ppm). (Hint: think about the resonance structures that can be drawn based on your responses from above) A B # of peaks chemical shift indicate: >7.2,...
3. (2 points) Which of the following compounds have electron withdrawing (EWG) or electron donating groups (EDG)? Circle the positions that will be activated/deactivated? NH2 NO₂
Which of the following are electron donating groups? -CH -NO, -COCH O-OCH - NHCOCH -CN Question 2 2 Which of the functional groups can act as a hydrogen bond donor? Select all that apply Carboxylic acid Alcohol D Amine Ester Aromatic ring Ether Amide Ketone
. In addition to the deshielding attributes of electron withdrawing groups, π-conjugation or aromatic moieties have a substantial deshielding effect on protons in NMR. The physical reasoning for this effect has to do with the fact that the externally applied Bo magnetic field induces delocalized electron currents in the π orbitals, which in turn generate their own magnetic field that adds constructively to the strength of Bo at the location of protons in the plane of conjugation. This effect is...
Help
a) Draw a complete mechanism showing how t-butanol is first converted into an electrophile and then how the electrophile is attached to the aromatic ring. b) What is meant by electron donating and electron withdrawing groups on an aromatic ring? Is the methoxy group an EWG or EDG? Is a t-butyl group an EWG or EDG? c) Two equivalents of t-butanol are used in this reaction. What is the likely problem if only one equivalent of t-butanol is used?...
1. please check what is wrong. Thank you!
Determine the product formed when each compound is treated with Br2 and FeBr3. Drag the atom labels to their appropriate positions. CN Atom labels H H Br Br2 A. FeBr Br H OH OH Br Br. Br2 FeBr3 H H Br Br H Br2 FeBr H1 H Reset T Rank the compounds in each group in order of decreasing reactivity in electrophilic aromatic substitution. CI Decreasing reactivity Rank the compounds in each...
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