Question

Draw the mechanism for the base-catalyzed tautomerization of butanal to it's enol form?

Draw the mechanism for the base-catalyzed tautomerization of butanal to it's enol form?
Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

When an aldehyde have at least one hydrogen atom on the carbon atom adjacent to the carbonyl group, called the alpha (?) carbon, this hydrogen can transfer to the oxygen atom of the carbonyl group. The double bond then migrates to the ?-carbon. As a consequence, a carbonyl compound with an ?-hydrogen can exist in two isomeric forms, called tautomers. In the keto form, the hydrogen is bonded to the ?-carbon, while in the enol form it is bonded to the carbonyl oxygen with the migration of the double bond.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Write the steps in the mechanism of the base catalyzed condensation of the following reaction: acetone...
Write the steps in the mechanism of the base catalyzed condensation of the following reaction: acetone + Benzaldehyde (2.0 equivalents) ---(NaOH, H2O, heat)----> dibenzalacetone a) The first step is the deprotonation of acetone to form the reactive enolate nucleophile. Draw a reasonable and detailed arrow pushing mechanism for the following transformation. b) Next, the reactive enolate will react with the electrophile, benzaldehde. This will give the addition product of the Aldol reaction. Draw a reasoable and detailed arrow pushing mechanism...
Propose an enzyme-catalyzed acid/base mechanism for the conversion of lactulose to lactose. Use general acids and...
Propose an enzyme-catalyzed acid/base mechanism for the conversion of lactulose to lactose. Use general acids and bases of your choice when necessary (not "B" or "HA"). Abbreviate the part of the disaccharide that does not participate in the reaction. I know this is an isomerization reaction, but I'm unsure of the mechanism.
How would base pairing in DNA be affected if the bases existed in the enol and...
How would base pairing in DNA be affected if the bases existed in the enol and imine form? I don't understand the question, could you give a simple example thanks
Explain and describe (i) keto-enol tautomerism, and (ii) boat form/chair form of cyclohexane.
Explain and describe (i) keto-enol tautomerism, and (ii) boat form/chair form of cyclohexane.
Outline a mechanism for the dehydration of 2-methylcyclohexanol into 1-methylcyclohexene catalyzed by acid. (include all arrows,...
Outline a mechanism for the dehydration of 2-methylcyclohexanol into 1-methylcyclohexene catalyzed by acid. (include all arrows, charges, and intermediates – you can assume H2O behaves as the base)
Draw and explain the mechanism for the synthesis of dimethylmaleate (using Maleic anhydride, methyl alcohol and...
Draw and explain the mechanism for the synthesis of dimethylmaleate (using Maleic anhydride, methyl alcohol and sulfuric acid as the catalyst). Draw and explain the reaction mechanism for halogen-catalyzed cis-trans isomerization of dimethylmaleate.
why is base-catalyzed transesterification faster and more efficient than acid-catalyzed?
why is base-catalyzed transesterification faster and more efficient than acid-catalyzed?
PGI uses a histidine and a glutamate residue as acid-base catalysts during the catalytic cycle. Draw...
PGI uses a histidine and a glutamate residue as acid-base catalysts during the catalytic cycle. Draw a single mechanism for the reversible PGI-catalyzed reaction. Indicate the flow of electrons for the forward (glycolytic) direction using solid arrows and that for the reverse (gluconeogenesis) direction using dashed arrows
Draw the mechanism for the formation of the competing substitution product that could possibly form in...
Draw the mechanism for the formation of the competing substitution product that could possibly form in the synthesis reaction of cyclohexanol to cyclohexene. Briefly give an explanation as to why it is the minor product.
Under base-catalyzed conditions, two molecules of acetone can condense to form diacetone alcohol. At room temperature...
Under base-catalyzed conditions, two molecules of acetone can condense to form diacetone alcohol. At room temperature (25 oC), about 5 % of the acetone is converted to diacetone alcohol. Determine the value of ΔGo for this reaction. Please explain where you are getting the numbers from to plug into the equations!
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT