10. Rank the following molecules in order of decreasing reactivity toward nucleophilic addition. CF3 CF3 CF 3 Br- til tilt IV II Answer H H₂C III CH3 CF3
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- Rank the reactivity of the compounds below toward nucleophilic acyl substitution by writing the compounds' letters in the proper blanks in the box below. `NH CI Br CH3 CH3 A В C E rank compounds for acyl substitution reactivity most least reactive reactive.Which one of the following molecules can react as electrophile in reactions with alkenes? CH3OH NaCI HCI KCN NaCI O HCI O KCN O CH3OH12) 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 CH₂CH₂CI
- Rank the following compounds in order of increasing reactivity towards nucleophilic addition (most to least reactive). Provide a brief explanation for your choice. i) H ii) H iii) CH3Rank the nucleophiles in following group in order of increasing nucleophilicity. H2O, −OH, CH3CO2-Denote how many nucleophilic centers are present in the following molecular structure (in case of polar bonds show clearly on the structure the dipoles õ+ and d-). :o: сно
- Rank the following structures in order of decreasing electrophile strength. most electrophilic least electrophilic CF3 `CF3 НWhich of the following are electrophiles, and which are nucleophiles? H− CH3O− CH3C=CH CH3CHCH3 NH35. What is the structure of an intermediate in the methyl shift rearrangement reaction shown in the box? A) C) B H₂SO4, H₂O B) D) OH
- Explain how this epimerization reaction occurs. H3C H H3C i) CH3ONA/EtOH ii) H,0 H. ČH3 CH3What is the major organic product of the following reaction? Br₂ SH آمديد مياده مبار Br || SH III IVIf anhydrides react like acid chlorides with the nucleophiles, draw the products formed when each of the following nucleophiles reacts with benzoic anhydride [(C6H5CO)2O]: (a) CH3MgBr (2 equiv), then H2O; (b) LiAlH4, then H2O; (c) LiAlH[OC(CH3)3]3, then H2O.