Classify each substituent as electron donating or electron withdrawing. Electron donating Electron withdrawing मन
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
For each of the following state if it is an electron withdrawing, electron donating, or halogen benzene substituent. a) acetanilide b) bromo benzene c) methyl benzoate d) Benzamide
(1) indicate if the ring substituent is Electron Donating (EDG), Electron Withdrawing (EWG) or Neither (N): (11) rank them in order of their reactivity towards EAS (1 = fast........4 = slow) en T-Br -NO, NO2 TOCH; -OCH;
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,...
5. Using what you determined in question 4, label each compound below as electron donating or electron withdrawing. (4 points) e Donating e Donating e Donating e Donating Circle one for or or or each substituent: e' Withdrawing e Withdrawing e Withdrawing e Withdrawing or z - HS: Draw curved arrows to produce the resonance structure below: Draw one resonance structure:
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?
effect of electron withdrawing group/ electron donating group on emission colour of the Alq3
(2) Review of Substituent Effects: (a) For each benzylic carbocation below: (1) indicate if the substituents are Electron Donating (EDG). Electron Withdrawing (EWG) or Neither (N); and (11) rank these benzylic carbocations based on stability (1 -most stable and 4 - least stable) (b) For each structure below: (1) indicate if the ring substituent is Electron Donating (EDG), Electron Withdrawing (EWG) or Neither (N); (11) rank them in order of their reactivity towards EAS (1 -fast.....4-slow) a a a a
5) Classify the following substituents as ELECTRON DONATING and ELECTRON WITHADRAWING? 3R -NH, -OCH, NO, -CH3 Electron Donating Electron Withdrawing 6) Classify the following compounds AROMATIC, ANTI AROMATIC and NON-AROMATIC? 2 PS ☺ A) 7) Arrange the following compounds in order of decreasing reactivity towards electrophilic aromatic substitution 2 Pts so More Reactive: Least Reactive 8) Rank the following benzoic acid derivatives in the increasing order of acidity? 2P соон COOH COOH COOH OCH NO 11 III IV Weakest Acid:...
5) Classify the following substituents as ELECTRON DONATING and ELECTRON WITHADRAWING? 3R -NH, -OCH, NO, -CH3 Electron Donating Electron Withdrawing 6) Classify the following compounds AROMATIC, ANTI AROMATIC and NON-AROMATIC? 2 PS con A) 7) Arrange the following compounds in order of decreasing reactivity towards electrophilic aromatic substitution 2 Pts ♡ so More Reactive: Least Reactive 8) Rank the following benzoic acid derivatives in the increasing order of acidity? 2P соон COOH COOH COOH OCH NO 11 IV Weakest Acid:...