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
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;
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?
What roles do electron withdrawing groups and electron donating groups play? (i.e., do they activate the diene or dienophile?
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,...
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
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?...
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...
what do the following Pka values tell you about the
electron withdrawing abilities of nitro, cyano, chloro, and
hydroxyl groups? Check all that apply. Please and thank you
What do the following pK, values tell you about the electron-withdrawing abilities of nitro, cyano, chloro, and hydroxyl groups? CH,COOH No, 1.68 CH,COOH CN 2.46 H2COOH CH,COOH ĆI 2.86 Cu.Com CH,COOH Os 3.83 Çk.cooh h 4.74 Check all that apply. Nitro and cyano are electron-donating, chloro and hydroxyl groups are electron-withdrawing The...