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- First Writedown which reaction it is? SN1, SN2, E1? Write a stepwise mechanism for the following reactions showing ALL intermediates. Use curved arrows to symbolize the flow of electrons to show how each of the intermediates and product are formed. Show all necessary lone pairs and formal charges.The reaction shown proceeds via a single transition state with a trigonal bipyramidal geometry. C1 C2 Br: + H3C 0: Two curved arrows are required to indicate all of the bond-making and bond-breaking processes in this reaction. Where should one of the arrows be drawn, if CH3O is the nucleophile? from a Br LP to the O atom from C1 to the O atom from C2 to the O atom from the C-O bond to Br from an O LP to C1 from an O LP to C2Provide a mechanism for the following reaction using arrows to indicate the movement of electrons being sure to indicate formal charges and any necessary lone pair electrons. HO 1. KSCH 3, MeCN 2. H3O+ SCH 3
- Provide a mechanism for TWO of the following reactions. Show all formal OVide atlin charges and lone pairs. Use the arrow convention to show the movement of ilin electrons. It should be neatly written. alli a) + H,O heat. Br b) HBr Br c) Br2, CCI4 "BrCH3 CH3 CH3 CH;=ĊCH,CHCH;OH H2SO4, H3C H3C Referring to the above reaction: 1. Which atom does the H2SO4 first remove? 2. Identify the reaction if it's hydrogenation, hydrohalogenation, etc. 3. Propose a mechanism for the reaction, using the arrow formalism to indicate the flow of electrons.11. Give the mechanism of the following reactions. Make sure to show all electron lone pairs and formal charges on atoms and show the direction of electron flow using curved arrows. Br CH;CH=CH2 + HBr CH;CHCH3
- 10. A compound X of molecular formula C8H12 with no triple bonds reacts with one equivalent of H2 to give a new compound having molecular formula CaH14. What can be inferred about the structure of compound X? A) Compound X has 3 rings. B) Compound X has 3 pi bonds. Compound X has 1 ring and 2 pi bonds. D) Compound X has 2 rings and 1 pi bond. 11. Determine the product of the following reaction. H, Lindlar's cat. %3D IV A)I B) II C) III D) IV Type here to search 互i | A C 三DName each alkene and specify its configuration by the E,Z system. Cl- Cl I a. b. Br С.1. Propose a mechanism for the following reaction. Use the arrow formalism to indicate the flow of electrons. CH3 CH3 CH3 CH2=ĊCH,CHCH,OH H2SO4, H;C_ H3C
- 9. Draw the structural formulas for the product(s) of each of the reactions below. ("n" indicates "many".) | a) п НОС(СH2)-СОН + п HO(CH-)aОН — |4. Using the curved arrow formalism to show all the bond-making and bond- breaking steps of the following reaction, indicating stereochemistry, where appropriate, by using wedges and dashes. CH,CH2OH H3C OCH,CH3 H,C. OCH CH35. Provide reasonable mechanisms for the conversions below. -CH3 NaOH `CH3 H,O Br