QUESTION 5 Which of the following reactions forms the product shown as the principal product? There may be more than one correct answer. OH 1. N2OH OCH2 2 CH;CH 1. NaH HO 2. CH;CH CH Br 1. NaH -oso,CH3 -HO- 2. CH3OTS 1. NaH 2. CH3l OCH3 HO,
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- ОН 1. H(OAc)2, На0 2. NABH4 .CH3 CH3 H2C H3C Acid-catalyzed addition of water to an alkene yields an alcohol with Markovnikov regiochemistry. The electrophilic H adds to the sp carbon with the most hydrogens to yield the most stable carbocation intermediate, which then adds water to give the product alcohol. Because a carbocation intermediate is formed, rearrangements can occur prior to the addition of water. To avoid the possibility of rearrangement and still give a Markovnikov alcohol, alkenes can instead be treated with mercury(II) acetate in aqueous THF and then subsequently reduced with sodium borohydride. This reaction proceeds through a cyclic mercurinium ion intermediate which cannot rearrange. Water adds to the cyclic intermediate at the most substituted carbon to give an organomercury alcohol. The reduction step with sodium borohydride is complex and involves radicals. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing…Which of the following compounds can be used to synthesize ethanoicpropanoic anhydride (CH;COOOCCH½CH3)? A. CH;COCI+ CH;CH2COO`Na* → B. CH;COOH +heat → C. CH3CH2CH2COCI + CH;COO Na* → D. A and CWhat is(are) the major final product(s) formed during the following sequence of reactions? 01 11 V 1.0₂ 2. (CH₂)₂S C₂H₂O 2 identical molecules ||| =PPhy < IV орна
- PLEASE HELP SHOW STEP BY STEP ELECTRON FLOW MECHANISM FOR THE FLOWING REACTION STEREOSELECTIVE ALKENE SYNTHESIS BY THE HORNER-EMMONS REACTION H (EtO), PCH,Ph (EtO),PCH₂Ph cat. BuчN* Br 50% NaOH hexanes ?formulae ОН 7.(a) Write the structural of the products formed when но- CH2- -CH react with i. Na ii. NaOH iii. PCI5 CH-СООН, Н" iv.17) Which of the following reaction(s) is(are) incorrect? а. Ortho Para Meta CH, CH3 NO, CH3 CH3 HNO, H,SO, `NO, NO, p-Nitrotoluene (37%) o-Nitrotoluene m-Nitrotoluene (59%) (4%)
- lls 02/18/19 41% ehhedrick0507 This is a Molecule Drawing question/Itis worth 1 point/ You have 1 of 3attempts remaining/Thereis n ttempt penalty 13 Question (1 point) e See page 605 Carbenes can add to alkenes to give a cyclopropane derivative. Draw the alkene (unknown X) that reacts with the carbene to give the following product. 3rd attempt VIEW SOLUTION 13/20 7 OF 20 QUESTIONS COMPLETED MacBook AirWhich of the following reactions would yield isopropylbenzene as the major product? OA. CH,-CHCH3 Benzene HF OB. CH3CHCH3 OH Benzene H,SO4 OC. CH,CHCH3 CI Benzene AICI3 OD. CH;CH,CH,C Benzene Ald3 OE. All of these choices.The molecule below is the major product obtained by reacting an alkene with 1. BH3/THF, 2. H2O2, NAOH, H20. The name of this alkene is OH OH он Et Pr. Et - Me Me Me H. Me H. PrH Pr Et D. O (Z)-3-ethyl-3-hexene O (E)-3-ethyl-3-hexene O (E)-3-ethyl-2-hexene O (Z)-3-ethyl-2-hexene 3-ethyl-1-hexene
- Give the organic reaction products for the following reaction a. b. a. b. CH3CH2-C. ง ว NaOH ? + ? N(CH3)2 H₂O H*/H₂O CH3-C-OCH2CH3 ? + ?Q6. Write the structures of the major products or reagents and conditions (including solvents) that complete the following transformations. Assume mono-reaction unless the reagents are specified to be in excess. If more than one step is required, be sure to indicate the order of addition. Br Br Br2, CCl4 OH 2. H₂O* MgBr THF H NaOH, H₂O A PhHN 1. 03, CH₂Cl2 2. Zn, ACOHOH 1. Hg(OAc)2, H20 2. NaBH4 .CH3 CH3 H2C H3C Acid-catalyzed addition of water to an alkene yields an alcohol with Markovnikov regiochemistry. The electrophilic H* adds to the sp2 carbon with the most hydrogens to yield the most stable carbocation intermediate, which then adds water to give the product alcohol. Because a carbocation intermediate is formed, rearrangements can occur prior to the addition of water. To avoid the possibility of rearrangement and still give a Markovnikov alcohol, alkenes can instead be treated with mercury(II) acetate in aqueous THF and then subsequently reduced with sodium borohydride. This reaction proceeds through a cyclic mercurinium ion intermediate which cannot rearrange. Water adds to the cyclic intermediate at the most substituted carbon to give an organomercury alcohol. The reduction step with sodium borohydride is complex and involves radicals. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing…