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- Complete each acid-base reaction and predict whether the position of equilibrium lies toward the left or toward the right. (a) CH3CCH+CH3CH2ONa+CH3CH3OH (b) CH3CCCH2CH2OH+Na+NH2NH3(l)12) Use the curved arrow formalism to show the movement of electron pairs in the following reaction and label each reactant as a nucleophile or an electrophile. CHÍNH CHỊCH, + CO Học Nha CH₂CH₂CIArrange these compounds in order of increasing boiling point (values in °C are -42, -24, 78, and 118). (a) CH,CH,OH (b) CH,OCH, (c) CH,CH,CH, (d) CH,COOH
- (a) Tsomane and Nyiko were given a task of synthesising methylenecyclohexane 2. After a brief discussion with each other, Tsomane proposed Method A to synthesise 2 from cyclohexanone 1 while Nyiko proposed Method B that started from hydroxymethylcyclohexane 3. Each student believed that their proposed method is better than the other. (Scheme below) Ph THF A Ph Ph B H₂SO4 100 °C 3 OH (iii) In analysing both these methods, are there other possible alkene products other than methylenecyclohexane 2? Use mechanistic details to support your answer.Complete the reaction map by matching A-E with the given choices. E LU 2Br₂ CCl4 H₂ Na in liq NH3 A C OH H₂ D Pt 0₂ Zn/H₂O HOW BPredict the products of the following acid-base reactions. If the equilibrium would not result in the formation of appreciable amounts of products, you should so indicate. In each case label the stronger acid, the stronger base, the weaker acid, and the weaker base: (a) CH3CH=CH2 + NANH2 (d) CH3C=C: + CH;CH2OH → (e) CH3C=C:- + NH¾CI – | (b) CH;C=CH + NaNH2 (c) CH3CH2CH3 + NANH2 → | HAS
- Electron pairs CH3 .. Erase H3C - С — СІ: H3C – S- CH3 CH3 CH, CH3 THF/H,0 + H,C--CH, CH C- CH CHs CH, Use curved arrows to write the first step of this nucleophilic substitution mechanism. :ö: | :ö: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 C2CH3 to Br- -H + Nal • product; Sy2 product of the reaction is : Аcetone H- -CH3 CH2 – CH3 CH3 CH3 CH3 CH3 it it -H H- -CH3 (d) -CH3 -H- (а) H• (Ъ) H- -CH3 -CH3 (с) H- CH -H- ČH2 – CH3 ČH2 – CH3 CH2 – CH3 CH2- CH3 2.
- 2 Write the IUPAC name for each compound. Ο COC-M (a) HV Ο 0 || (d) H₂N- C (b) CH₂(CH₂),COCH, OTT HO noitos2) alodo d diw sobirbydaA to noilo ono evig of alcools dikw 39891 abitbydA (8.81 (c) CH₂(CH₂)4CNHCH, no bae totes me to slom 0 O CNH₂ با нио но но но HOOH + HOOO HO HOOOH OHO.HOOD HO || (e) CH₂CO-A iw sobixbydnA to noltoso. driw do A (D681 moitoo@) aoniMA "I w bn shomme a onions to solomeowths of elom ono bas shima Joubo aviy oj vig OH OHO bertiup bios biydisororesidenten (f) CH3CHCH₂COCH₂CH3H3C-O-SiH3 ether, which is similar to dimethyleters, was synthesized. This ether is known to be a weaker base than (CH3)3O. Discuss why and explainPredict the product of the following reaction. Be sure to include all electron lone pairs and formal charges. :0: :ד: F: H₂O H2SO4, acetic acid reflux