Write a mechanism for the following reaction: HNO3 H2SO4 11+ Show all resonance contributors to any intermediate in your answer. Explain why ortho-substitution is favourable. What other isomer might be expect? What isomer don't we expect? Give brief reasoning. You will need to attach your written answer in the appropriate section below.
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- The reaction of methylpropene with HBr, under radical conditions, gives two intermediates. Propose a mechanism for the formation of the two products. Propose a mechanism for the following reaction and use electronic factors to account for the formation of a major product: CH2 CH2Br N-Bromosuccinimide (NBS) ho, CCI4 Draw the structure of an antioxidant, Vitamin E free radical and use resonance structures o account for its stability.Illustrate the resonance effect of the methoxy group -OCH3, on the structure of the benzene ring. Draw all the oissuvke resonance forms of methoxybenzene, including the hybrid Based on the structures, explain how the presence of the -OCH3 group affects: (i) the reactivity of the benzene ring towards electrophilic attack (ii) the orientation or point of attack of an incoming electrophilic reagent on the benzene ring.Rank the following carboxylic acids derivatives based on their reactivity towards nucleophiles (1-most reactive - 4- least reactive), and describe the structural features you use to detrmine your ranking.
- Help ASAP Illustrate the resonance effect of the methoxy group -OCH3, on the structure of the benzene ring. Do this by writing all the possible resonance forms for methoxybenzene, including the hybrid. Based on your structures, explain how the presence of the -OCH3 group affects: (i) the reactivity of the benzene ring towards electrophilic attack; (ii) the orientation or point of attack of an incoming electrophilic reagent on the benzene ring.C(CH3)2OH C(CH3):X +H20 where (X=F, CI, Br, I) give reaction with each of halogen as well determine with which halogen substitution reaction is more favorable and feasible and give reason of its feasibility?: Treatment of (CHa)CHCH(OH)CH,CH3 with TSOH affords two products (M and N) with molecular formula CgH12. The 'H NMR spectra of M and N are given below. Propose structures for M and N and draw a mechanism to explain their formation. 1H NMR of M 3H 1H NMR of N 3H 3H 3 H 1H 3 H 2 H 2H 2H 8 7 6 4 1 0 9 8. 2 1 ppm ppm 4.
- 1. There are several isomeric alkanes of molecular formula C6H14.Two of these exhibit the following 1H-NMR spectra. Propose a structure for each of the isomers. Isomer A: δ = 0.84 (d, 12 H), 1.39 (septet, 2H) ppm Isomer B: δ = 0.84 (t, 3 H), 0.86 (s, 9H), 1.22 (q, 2H) ppmWrite a mechanism that accounts for the formation of ethyl isopropyl ether as one of the products in the following reaction. CI OEt HCI EtOH Write the mechanism for step one of this reaction. Show lone pairs and formal charges. Only the acidic hydrogen should be drawn out with a covalent bond. Write the mechanism for step two of this reaction (where the product of step one reacts with the solvent, ethanol). Show lone pairs and formal charges. Only the acidic hydrogen should be drawn out with a covalent bond. Write the mechanism for the last step of this reaction (formation of ethyl isopropyl ether). Show lone pairs and formal charges. Only the acidic hydrogen should be drawn out with a covalent bond. CI will act as the base in this reaction.Propose a mechanism for this reaction. Account for both its regioselectivity and stereoselectivity.
- Diphenylacetylene can be synthesized by the double dehydrohalogenation of 1,2-dibromo-1,2-diphenylethene. The sequence starting from (E)-1,2-diphenylethene consists of bromination to give the dibromide, followed by dehydrohalogenation to give a vinylic bromide, then a second dehydrohalogenation to give diphenylacetylene.(a) What is the structure, including stereochemistry, of the vinylic bromide?(b) If the sequence starts with (Z)-1,2-dibromo-1,2-diphenylethene, what is (are) the structure(s) of the intermediate dibromide(s)? What is the structure of the vinylic bromide?4. The reaction of the epoxide with methoxide produces one of the two constitutional isomers of methoxy-methylcyclopentanol shown below. Write the steps in the mechanism for this process. Be sure to show the following: (1) the structure of any intermediates that are formed during the mechanism, (2), what, if anything, is added or lost during each step of the mechanism, (3) any non-zero formal charges found on the structures that you write. REMEMBER: You may not use any materials except those that are given in the equation. OH H₂C * F OH NaOME/McOH3) When an ethylamine (CH3CH2NH2) solution of 1-methylcyclohexene is treated with bromine (Br2), the following reaction occurs: CH3 Br2 NHET + enantiokner EINH2 Br Propose a detailed mechanism to account for the products shown; include any intermediates (provide perspective diagrams (wedge/dash notation) and resonance forms where appropriate), curved arrows, formal charges, and lone pairs as need for all species involved. Hint: the Natom has a lone pair ...