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- Complete the following reactions schemes by drawing the messing intermediate/products: SeO2 i) Ethanol H* ii) H20 OH HỎ OH 1) 4 equivqalents of H2/ Pd iii) 2) KMNO,/H* O3 iv) Zn Ag,O/ H2O excess Mel K,CO3 Нeat v) CH3List the rates of hydrolysis reactions of the compunds given below from large to small. Explain why H3C-Ö-NH2 i) H,C-č-cı H,C-č-OCH,Mechanism: A reaction mechanism for the following reaction is shown below. H+ CEN CEN: N-H || -C-OH H₂O, H* Step 1 wand woled mot ozsm E Step 3 N-H C-OH C=N-H Step2 C=N-H H-O-H H₂O motno vgiene fesrigid onlt to smotnos -C=N-H a) The overall reaction is an example of b) Step 1 is c) Step 3 is d) Draw in the curved arrows for each step. e) Identify the nucleophiles and electrophiles where appropriate. f) Fill in the reaction energy diagram. H₂O: rate determining step to noipojovo hamwell sit 5(emise erit voittons 10) vanas mi sdgin al rainW di of E^ reaction progress →
- Q4 Complete the following reactions schemes by drawing the messing intermediate/products: HOR HOO R H,SO./H.0 Peraxyacid 1. (Acidic hydrolysis) он NalO. 2. OH HO Me,CO 3. Но- ZnCl, OH OMe "OH 4- Ozonolysis -H20The following figure shows the energy profile of a nucleophilic substitution reaction. Potential energy :ÖH H HII.C H C-1 H HO--C---I HH Reaction coordinate H -CH HO–CHITH H + 1 According to this, it is correct to affirm: O The activation energy (4G°) shows that it is thermodynamically favorable. O Represents a reaction that occurs in one step where a pentavalent chemical species is formed. O The intermediate has lower energy than any transition state. O The formation of the intermediate releases energy and is therefore thermodynamically favourable.Draw Intermediate CH3OH₂+ protonation H H3C -0 H Q CH3OH deprotonation loss of H₂O elimination H3C :0 ÖH -CH3 Draw Intermediate CH3OH deprotonatio Please select a drawing or reag
- owing reactions proceeds via an SN1 or SN2 of the reaction: (b) S2 pro85 39 Br tort atubong auonsV HMPAnoitutitaduaCurved arrows are used to illustrate the flow of electrons. Follow the arrows and draw the intermediate and product in this reaction. Include all lone pairs. Ignore stereochemistry. Ignore inorganic byproducts. :O: H :OCH3 H OH CH3 CH3OH2+ protonation CH3OH deprotonation H3C CH3OH ОН nucleophilic addition -H Draw Intermediate QDraw the mechanism for the reaction of an alkyl halide with sodium azide followed by reduction. Complete the mechanism of the initial step of the reaction, then identify the key intermediate and the product. Step 1: Draw curved arrows. o z + Na + || : z: I Step 2: Complete the intermediate. Na +
- The reaction below is a base-catalyzed aldol reaction. O || CH₂-C-H CH3-C-H Ethanal (Acetaldehyde) H I CH3-C-H Ethanal (Acetaldehyde) NaOH Draw curved arrows to show the movement of electrons in the step of the mechanism shown below. Arrow-pushing Instructions AC⇒x= :O: || :CH₂-C-H OH Bl CH3-CH—CH2-CH -CH₂-1-1 a 3-Hydroxybutanal (B-hydroxyaldehyde; formed as a racemic mixture) :0: :0: || CH3—CH—CH2-C-H A tetrahedral carbonyl addition intermediate XPredict the product of each of the following reactions: H,SOJ excess MEOH но OH ? [H,SO,) -H,0 -H20 (a) (b) [H*] NH 2 -H,0 ? [H*] ? (d) NH2 -H,0 (c)The key step in a reported laboratory synthesis of sativene, a hydrocarbon isolated from the mold Helminthosporium sativum, involves the following base treatment of a keto tosylate. What kind of reaction is occurring? How would you complete the synthesis?