Which structure is NOT an intermediate in the following reaction? O H OH gfdf Catalytic H+ CH₂CH₂OH OCH₂CH3 OH₂ OCH₂CH₂ OCH₂CH₂ OCH₂CH3 OCH₂CH3
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In this question, we will see that which structure is not a intermidiate during the reaction mechanism for the given reaction.
This reaction is acetal formation reaction because two moles of alcohol protected aldehyde group.
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- In each of the following three reaction coordinate diagrams, state: (a) Whether the reaction is exothermic or endothermic. (b) Whether the reaction is the slowest, the fastest, or intermediate in rate. (c) If all three reactions have the same entropy change between the reactant and product, which reaction has the largest favorable G0.NH3(g) + HCIO4(1) E→ NH,CI0,(s) A B C D Ep E, Ep - R P R P R R Reaction Path Reaction Path Reaction Path Reaction Path AShown below is step 2 of the mechanism. Modify the given drawing of the product as needed to show the intermediate that is formed in this step. CH, CH, CH2 H,C- 1Z + 1 +t +1
- Consider this reaction: Br CH;OH Br-Br H3CO The mechanism proceeds through a first cationic intermediate, intermediate 1. Nucleophilic attack leads to intermediate 2, which goes on to form the final product. In cases that involve a negatively charged nucleophile, the attack of the nucleophile leads directly to the product. Br + CH3OH Br Intermediate 1 Intermediate 2 (product) In a similar fashion, draw intermediate 1 and intermediate 2 (final product) for the following reaction. OH + Br2 + HBr Br racemic mixtureConsider this reaction: Br CH3OH Br-Br H3CO The mechanism proceeds through a first cationic intermediate, intermediate 1. Nucleophilic attack leads to intermediate 2, which goes on to form the final product. In cases that involve a negatively charged nucleophile, the attack of the nucleophile leads directly to the product. H. Br + CH;OH Br Intermediate 2 (product) Intermediate 1 In a similar fashion, draw intermediate 1 and intermediate 2 (final product) for the following reaction. OH + Br2 + HBr Br racemic mixtureOf the following, which represents the intermediate that is most likely formed in the first step of the mechanism? Br ОН Br ОН ОН ОН OH2
- On the lowest energy pathway to form the product of the following reaction, which species is a plausible transition state? (Dotted lines represent bonds in the process of forming or breaking.) x● HBr H---Br Br-H H----Br ठ Br-H productOH OH ∞∞ BF3 Et₂O This reaction takes place via a pinacol rerrangement. Please, draw curved arrows to show the movement of electrons in this SPECIFIC step of the reaction mechanism. +BF3 HO: :OH OH (BF3OH)Compound A is converted to compound B via a one-step reaction with an activation energy of +3 kcal/mol. The energy difference between Compound B and the transition state of the reaction is 7 kcal/mol. What is the AH° for the reaction? O -10 kcal/mol -4 kcal/mol +10 kcal/mol -3 kcal/mol +3 kcal/mol +4 kcal/mol
- Draw the most stable resonance form for the intermediate in the following electrophilic substitution reaction. H3PO4 CH3O CH3O • You do not have to consider stereochemistry. • Include all valence lone pairs in your answer. • In cases where there is more than one answer, just draw one. +opy aste C P - [F Fo OHChloromethane reacts with dilute sodium cyanide (Na+ -C‚N) chloromethane cyanide acetonitrile chloride. When the concentration of chloromethane is doubled, the rate is observed to double. When the concentration of cyanide ion is tripled, the rate is observed to triple. Write the rate equation for this reaction.Choose the correct steps for the mechanism for the following reaction. For any steps that do not need to be used, fill with "na". OH A H₂SO4, H₂O 5 X B ÖH₂ OH