(b) Draw the product of this SNAR reaction, account for its formation providing a curly arrow mechanism for the reaction and justify the regioselectivity. OMe Br H₂N
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- Describe and explain each step in the mechanism provideda) Consider the reaction scheme below. -[•] PhLi HONH,, HCI A ELOH B D (i) Deduce the structures of compounds A, D and intermediate C. (ii) Outline the mechanism for the conversion of A to B.(11) A OB C D A solution of which of the following alkyl halides in methanol will be optically active to begin but slowly lose most or all of its optical activity when heated? H H Br H3CBr Br (B) (A) T Br (C) (D)
- (a) Provide a detailed mechanism for the reaction below. Explain any selectivity issues that arise. Ms = ---S -Me OMS CI + PhMgBr .CIConsider the reaction scheme shown below. HCI [1] ОН (a) Provide a detailed mechanism for reaction [1].(d) Propose a reaction mechanism to account for the following reaction. AIC3
- Provide to llaving Br a detailed, step by step mechanism for the reaction OCH₂CH3₂ OCH₂CH3 OCH₂ CH3Resveratrol is an antioxidant found in the skin of red grapes. Itsanticancer, anti-inflammatory, and various cardiovascular effects areunder active investigation. (a) Draw all resonance structures for theradical that results from homolysis of the OH bond shown in red. (b)Explain why homolysis of this OH bond is preferred to homolysis ofeither OH bond in the other benzene ring.Chemistry 3. Complete the following reaction scheme. Give all product(s) and indicate major or minor and any relevant stereochemistry. (а) NaOEt heat (b) heat (c) Br NaCN DMF (d) (e) OH H,SO,/H,PO, heat (f) HBr (g) 1) BH. THE 2) H,0, OH (h) 1) Hg(OAC), H-0 2) NaBH, (i) KMNO, NaOH Cold
- Give the detailed mechanism for the following nitration reaction. Show the contributing resonance structures and the resonance hybrid for the intermediates. HNO,, H,SO, NO2Which is the major substitution product of the reaction shown? (A) OEt (C) (E) no reaction Br NaOEt © 2019 ProtonGuru.com (B) (D) OEt (F) a mixture of more than oneshow how you would synthesize each of the following compounds from simple, readily available materials. tks so much. (a) (b) OH OBn (c) (d) BnO Br Racemic, cis Br
