write resonance structures for the ortho and para arenium ions formed when ethylbenzene reacts with a Br+ ion (as formed from (Br2/FeBr3)
write resonance structures for the ortho and para arenium ions formed when ethylbenzene reacts with a...
Objectives - Section 1 • Identify a substituent as an ortho para director or a meta director, Draw the resonance structure that explains the relative directing ability of a specific substituent. Classify a substituent as an activating or a deactivating group. Explain why the halogens are ortho/para directors but are deactivators. • 1. Draw the mechanism of the reaction below and use resonance structures of the arenium ion intermediate to explain why the starting material is an ortho/para director
Methoxy benzene (anisole) reacts with a mixture of FeBr3 and Br2 and the major products obtained are ortho- and para-substituted. Draw the 3 major and minor products of the reaction and use resonance structures of the carbocation intermediate to explain why ortho and para substitution occur in preference to the meta-substitution.
Question 1 (10 pts). When N,N-dimethylaniline is treated with bromine, ortho and para products are formed. Note that this ring is so activated that a Lewis acid catalyst is not needed. Yet, when this material is treated with nitric/sulfuric acids, only the meta product is formed indicative of a very deactivated ring). Explain these curious results. z Br2 Br HNO, H2SO4 NO
Provide a resonance structures which explain why ortho and para nitrophenol are much more acidic than phenol
Using resonance structures and a brief explanation, explain why phenol (C6H5OH) is an ortho-para director (25 pts).
(V) 10pts. When aniline (C6H3-NH2) reacts with bromonium ion (NO2. the nitro group can become bonded to a carbon at one of the three possible positions: ortho, meta, and para to the -NH2 group in the benzene ring. Consider meta and ortho attack and draw RESONANCE STRUCTURES for the carbocations that result when NO2 undergoes electrophilic aromatic substitution to aniline. Then, on the basis of these resonance structures, explain whether the --NH2, group.is meta director, or ortho/para director. Show which...
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...
2 When an aromatic ring with an -OR group is halogenated, which of the following resonance structures explains the ortho of the ortho and para preferred orientation of the incoming electrophile? Explain your answer. ÖR +ÖR ÖR OR H Η Н Br Br - Br .
Write IUPAC names for compounds below. If you use them, abbreviate ortho-, meta-, & para- as o-, m- & p- (no italics). please answer all. I will rate. thanks! CH30 CH3 a. ethylbenzene O он CH3 Сн, a. benzenecarboxylic acid
Draw Lewis Structures for the following /polyatomic ions, using 3D appropriate, and resonance structures when they exist. (Using NASR rule). and answer questions .Electronic geometry? Molecular geometry? Bond angels? Hybridization? Is the ion polar? 1. BFBr2 2. SBr3- 3. SO22-