Rank the following compounds in order of increasing reactivity during electrophilic substitution reactions: + NH3 NH2 0-CH2-CH3 -CH3 -CH3 II IV III
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Q: II `NH2 II ОН IV V
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Q: CI I II IV
A: The correct answer is given below
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- Melamine, used as a fire retardant and a component of the writing surface of white boards, can be prepared from s-trichlorotriazine through a series of SNAr reactions with ammonia. The first substitution takes place rapidly at room temperature. The second substitution takes place near 100 °C, and the third substitution requires even higher temperature and pressure. Provide an explanation fatr this reactivity.Identify the major and minor product(s) of the following reaction: of Br NaOEt ? ELOHWrite the appropriate reagents, conditions and products for the following electrophilic aromatic substitutions: COOH H₂ (3) Pt NO₂ ~
- .Which one of the following molecules can react as electrophile in reactions with alkenes? CH3OH NaCI HCI KCN NaCI O HCI O KCN O CH3OHRank the following carboxylic acid derivatives in decreasing order (most to least) of reactivity towards nucleophilic substitution CI NH2 OCH3 ONa II IV OI> IV> III > || O > IV > || >I O I> II| > || > IV O II > IV > 1> IIf 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.
- Predict the products from reaction of 2-hexyne with the following reagents:(a) 2 equiv Br2(b) 1 equiv HBr(c) Excess HBr(d) Li in NH3(e) H2O, H2SO4, HgSO4What reagents are needed to synthesize the following bromides? Br Br Provide the major organic products obtained from the following reactions. a) SN1 CH;OH methanol b) DMF TsO Et CH;COONA SN2 Br, lightElectrophilic aromatic substitution usually occurs at the 1-position of naphthalene, also called the a position. Predict themajor products of the reactions of naphthalene with the following reagents. cyclohexanol and BF3
- Acid-catalyzed a-halogenation is a useful reaction for synthesis, especially regarding substitution and elimination reactions. Provide the missing structures (A-C) for the following mini road map. H Br₂ H3O+ A E2 | NaNH2 C NaO SN2 BIn the following reaction, the nucleophile is: CH₂CH₂Br 3-phenylpropanenitrile cyanide ion Water 1-ethylbenzene bromide e OH PCN H₂O Write the product of the reaction: H + H +O eq -I CH₂CH₂CNWhich of the following synthesis reactions of organohalide occurs via electrophilic addition? (A) reaction of chlorine with propane B reaction of chlorine with propene reaction of thionyl chloride with propan-2-ol (D) all choices