Writing Reaction Mechanisms: Nucleophilic Addition to Carbonyl - Cyanohydrins Electron pairs + :: Erase Na :C=N: H-C=N:...
Writing Reaction Mechanisms: Nucleophilic Addition to Carbonyl - Cyanohydrins Electron pairs Na * :C=N: H-CEN: Erase CH3 -C-C=N: :0:00 H-O-H Write the second step using curved arrows to show electron reorganization. HC c H-CN- - HC-c-C=N Submit Next (4 of 5) Incorrect Try again.
EXERCISE Writing Reaction Mechanisms: Acyl Transfer Electron pairs :0: H-o-H CH3 C Erase + Na :0– CH3 :0 - H Write the first step of the reaction mechanism using curved arrows to show electron reorganization. 0 O H3C- + Na OH HO + H-ô-CH 0 - Nat OCH < Recheck Next (1 of 5)
EXERCISE Writing Reaction Mechanisms: The Claisen Condensation Electron pairs Na O-CH2- CH3 O Н O Н Erase CH2 CH3 Н-о H C Н-с С Н Н OEt 0Et Write the first step of this Claisen condensation using curved arrows to show electron reorganization O: 1) 1eq. NaOEt 2) cold dilute HC CH-с o-Et H-Ö-Et CH3-C-CH2- о-Et
Electron pairs C N O Erase H C N: CНз — с — Н Н —о — н Write the first step using curved arrows to show electron reorganization OH Na CN HC-C-CEN +H-CEN H Electron pairs Erase Н—о — СНз H CHз — с — н Н—о —СН3 Write the first step of hemiacetal formation using curved arrows to show clectron reorganization O-H НC -CH-C-H CHOH H O-CH 1. HBr 2. Mg, ether 3. 4. HCI, H2O Draw the...
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EXERCISE Writing Reaction Mechanisms: Electrophilic Aromatic Substitution Electron pairs 1:01: H-c/ H . Erase . L : CI – 01: Fe - CI: Torch :C: Write the first step of the mechanism for chlorination of benzene using curved arrows to show electron reorganization. Next (1 of 6) Recheck 15th attempt Incorrect Try again.
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XERCISE Writing Reaction Mechanisms: Beta-Elimination: Dehydrohalogenat Electron pairs CHз Н Erase Н— о: С Cl CHз Write the first step of this elimination using curved arrows to show electron reorganization. Remember that a mechanism step may require more than one curved arrow. X (1 of 4) Recheck 18th attempt Incorrec Try again I HK 0:
NON N(CH3)2 Na 0,5 Na Os N - N(CH3)2 1. methyl orange, an acid-base indicator HC HC H excess NH NH4Cl 2. H H NH2 a = Electrophilic addition d = Sy2 Nucleophilic substitution g=Nucleophilic subs at carbonylacyl Xfer) b =E2 Elimination e-Electrophilic aromatic substitution h = Conjugate (nucleophilic) addn c=Syl Nucleophilic substitution 1=Carbonyl nucleophilic addn Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters ai for your answers
aqueous NaOH HCCl CCl3 O Na 2. OH HCI но d-SN2 Nucleophilic subst e - Carbonyl nucleophilic addn f= Nucleophilic subs at carbonyl(acyl Xfer) g-Conjugate (nucleophilic) addn a-Electrophilic addition - E2 Elimination C-SNI Nucleophilic subst Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a - i for your answers 1. 2. он Na HSO3 SO3 Na O2C citrate synthase COA CH2 CO2 CH2 O CO2 Acetyl coenzyme A Oxaloacetate...
Draw curved arrows to show electron reorganization during the following reaction. Click the Help link on the upper right for drawing instructions. You may need to scroll to the right to see the link. Reset Arrows :ÖH :o: H3C-0-0-H — H3C-C=CH2 HC—c=cH2 + + -H -I Make the ends of your curved arrows specify the destination of the reorganizing electron pair as precisely as possible. correct correct ✓ CHz H2Cc+ -H Hei: - H* + :C: CH3 incorrect incorrect H*...
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To answer the questions below use the following information: Cyanohydrins are important intermediates in the synthesis of c-hydroxycarboxylic acids from ketones and aldehydes. The nitrile functional group can be hydrolyzed by aqueous acid to yield a carboxylic acid. Nitriles can also be hydrolyzed to carboxylic acids using aqueous base. Unfortunately, when a cyanohydrin is treated with aqueous base the original carbonyl compound is isolated OH CHCOOH HO CN OBU H HCEN H NAOH H20...