based on the ortho , meta and the para directing
direction the possible positions as follows
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?
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
(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) Classify the following substituents as ELECTRON DONATING and ELECTRON WITHADRAWING? 3 PL -NH, -OCH, NO2, -CH3, Electron Donating Electron Withdrawing 6) Classify the following compounds AROMATIC, ANTI AROMATIC and NON-AROMATIC? 2 Pts A) B) D) 7) Arrange the following compounds in order of decreasing reactivity towards electrophilic aromatic substitution 2 Pts 20 11 More Reactive: Least Reactive 8) Rank the following benzoic acid derivatives in the increasing order of acidity? 2 Pts COOH соон соон соон OCH CI NO2...
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the reactivity of the benzene ring in electrophilic aromatic substitution reactions (e.g., nitration). A. The ortbo and para positions are activated and the meta position is deactivated. C. The ortho and para positions are deactivated and the meta position is activated. A. All positions are activated -ortho and para are more activated than meta. D. All positions are deactivated -ortbo and para are more deactivated...
0.67/1 pts Partial Question 10 For each series of three compounds choose the one that is the most reactive for the reaction in the box. In the feedback, EDG-Electron Donating Group and EWG - Electron Withdrawing Group. The most reactive compound in Series #1 is: B (Chapter 11) The most reactive compound in Series #2 is: E (Chapter 13) The most reactive compound in Series #3 is: H-A (Chapter 10) the active pre NO CHORYCH Answer 1: B Choose the...
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:...
When there is an electron-withdrawing group on a benzene ring (eg. compounds such as nitrobenzenebenzoic acid, acetophenone, etc, resonance structures can be drawn that indicate the positions on the benzene ring that are least nucleophilic (because they have a positive charge on the carbon at that position). Because these positions are much less nucleophilic, the substitution reaction will not occur here; instead, substitution will occur at the other position(s) on the ring. As a result, which position(s) are most nucleophilic...