Write the steps in the mechanism of the base catalyzed condensation of the following compounds: A....
Write the steps in the mechanism of the base catalyzed condensation of the following compounds:
A. 2CH3CH2C(O)H
B.CH3C(O)CH3+2C6H5C(O)H
Homework Answers
I think this is an aldol reaction; see the mechanism section at the link below.
Source(s):http://en.wikipedia.org/wiki/Aldol_conde...
An aldol condensation is an organic reaction in which an enol or an enolate ion reacts with a carbonyl compound to form a ?-hydroxyaldehyde or ?-hydroxyketone, followed by a dehydration to give a conjugated enone.
Aldol condensations are important in organic synthesis, providing a good way to form carbon
Add Answer to:
Write the steps in the mechanism of the base catalyzed
condensation of the following compounds:
A....
Show the mechanism for a base-catalyzed aldol condensation of the reaction. Use any appropriate base. Show...
Show the mechanism for a base-catalyzed aldol condensation of
the reaction. Use any appropriate base.
Show the mechanism for an acid-catalyzed aldol concentration
of the reaction. use any apporproate acid.
2. Draw and name the compound resulting from the aldol condensation of vanillin with creatinine. сн, NH но- 160°C NH CH Vanillin Creatinine 2. Draw and name the compound resulting from the aldol condensation of vanillin with creatinine. сн, но- NH 160 C NH сH, Vanillin Creatinine
Predict major product (WITH MECHANISM) of the base-catalyzed aldol condensation with dehydration of: methyl phenyl ketone...
Predict major product (WITH MECHANISM) of the base-catalyzed aldol condensation with dehydration of: methyl phenyl ketone + 2,2-dimethylpropanal
Please show all steps . Thank you Provide a detailed, wise mechanism for the acid-catalyzed condensation...
Please show all steps .
Thank you
Provide a detailed, wise mechanism for the acid-catalyzed condensation reaction between step benzaldehyde and methylamine
show a mechanism of formatiin if the following enol under base catalyzed conditions We were unable...
show a mechanism of formatiin if the following enol under base
catalyzed conditions
We were unable to transcribe this imageShow a mechanism of formation of the following enol under base-catalyzed conditions: For the mechanism, draw the curved arrows as needed. Include lone pairs and charges in your answer. Do not draw out any hydrogen explicitly in your products. Do n use abbreviations such as Me or Ph. Step 1 0 Get help answering Molecular Drawing question Draw step 1 of...
Define (reaction only) the base catalyzed cross-aldol condensation reaction between excess benzaldehyde and propanaldehyde (No mechanism...
Define (reaction only) the base catalyzed cross-aldol condensation reaction between excess benzaldehyde and propanaldehyde (No mechanism needed)!
1. Draw the complete curved-arrow mechanism for the base-catalyzed aldol condensation to form dehydrorheosmin (or d...
1. Draw the complete curved-arrow mechanism for the base-catalyzed aldol condensation to form dehydrorheosmin (or dehydrozingerone) from acetone and 4-hydroxybenzaldehyde (or vanillin). (2 points)
Base-catalyzed crossed aldol condensation followed by the oxa-michael addition reaction mechanism for the reaction above! Thank...
Base-catalyzed crossed aldol condensation followed by the
oxa-michael addition reaction mechanism for the reaction above!
Thank you!!
20 10 F4 FOF2 DOO FS F9 0 A 6 7 8L 0 diiso propylamine (DIPA) EtoH + HP
Unit 3 Homework Assignment Name 1. The first two steps in the base-catalyzed condensation of acetaldehyde...
Unit 3 Homework Assignment Name 1. The first two steps in the base-catalyzed condensation of acetaldehyde would be described as: a. attack of Off on the carbonyl carbon atom, then loss of water b. attack of OH on the carbonyl carbon atom, then the resultant anion attacks the carbon atom on a second molecule of acetaldehyde. carbonyl bstracts an alpha-hydrogen atom, then the resultant anion attacks the carbonyl carbon atom on a second molecule of acetaldehyde. d. Oir abstracts the...
Write a curved arrow mechanism for the acid catalyzed Fischer esterification of benzoic acid...
Write a curved arrow mechanism for the acid catalyzed Fischer esterification of benzoic acid in CH3O*H (that is 0-18 labeled methanol). Show all steps, lone pair of electrons, charges and labeled O atoms through the mechanism.
can someone do 1-3? Pechmann Condensation 1. Propose a mechanism for the acid-catalyzed Pechmann condensation of...
can someone do 1-3?
Pechmann Condensation 1. Propose a mechanism for the acid-catalyzed Pechmann condensation of resorcinol and ethyl acetoacetate. Identify the transesterification, electrophilic aromatic substitution and dehydration steps. 2. Would you expect 1,3,5-trihydroxybenzene (phloroglucinol) to react more quickly or more slowly than resorcinol? Why or why not? 3. Consider and discuss the greenness of Pechmann Reaction. 4. Discuss and assign the peaks (chemical shift, splitting pattern, etc) in the 1H NMR and IR spectra of your product INDO,
Show the mechanism for a base-catalyzed aldol condensation of
the reaction. Use any appropriate base.
Show the mechanism for an acid-catalyzed aldol concentration
of the reaction. use any apporproate acid.
2. Draw and name the compound resulting from the aldol condensation of vanillin with creatinine. сн, NH но- 160°C NH CH Vanillin Creatinine 2. Draw and name the compound resulting from the aldol condensation of vanillin with creatinine. сн, но- NH 160 C NH сH, Vanillin Creatinine
Please show all steps .
Thank you
Provide a detailed, wise mechanism for the acid-catalyzed condensation reaction between step benzaldehyde and methylamine
show a mechanism of formatiin if the following enol under base
catalyzed conditions
We were unable to transcribe this imageShow a mechanism of formation of the following enol under base-catalyzed conditions: For the mechanism, draw the curved arrows as needed. Include lone pairs and charges in your answer. Do not draw out any hydrogen explicitly in your products. Do n use abbreviations such as Me or Ph. Step 1 0 Get help answering Molecular Drawing question Draw step 1 of...
Define (reaction only) the base catalyzed cross-aldol condensation reaction between excess benzaldehyde and propanaldehyde (No mechanism needed)!
1. Draw the complete curved-arrow mechanism for the base-catalyzed aldol condensation to form dehydrorheosmin (or dehydrozingerone) from acetone and 4-hydroxybenzaldehyde (or vanillin). (2 points)
Base-catalyzed crossed aldol condensation followed by the
oxa-michael addition reaction mechanism for the reaction above!
Thank you!!
20 10 F4 FOF2 DOO FS F9 0 A 6 7 8L 0 diiso propylamine (DIPA) EtoH + HP
Unit 3 Homework Assignment Name 1. The first two steps in the base-catalyzed condensation of acetaldehyde would be described as: a. attack of Off on the carbonyl carbon atom, then loss of water b. attack of OH on the carbonyl carbon atom, then the resultant anion attacks the carbon atom on a second molecule of acetaldehyde. carbonyl bstracts an alpha-hydrogen atom, then the resultant anion attacks the carbonyl carbon atom on a second molecule of acetaldehyde. d. Oir abstracts the...
can someone do 1-3?
Pechmann Condensation 1. Propose a mechanism for the acid-catalyzed Pechmann condensation of resorcinol and ethyl acetoacetate. Identify the transesterification, electrophilic aromatic substitution and dehydration steps. 2. Would you expect 1,3,5-trihydroxybenzene (phloroglucinol) to react more quickly or more slowly than resorcinol? Why or why not? 3. Consider and discuss the greenness of Pechmann Reaction. 4. Discuss and assign the peaks (chemical shift, splitting pattern, etc) in the 1H NMR and IR spectra of your product INDO,
Most questions answered within 3 hours.
-
Calculate and plot the number and weight distributions of x-mers
found in a step-growth polymerization for...
asked 6 minutes ago -
The Baily Corporation has developed a specialized software
program that improves inventory control capability. The following...
asked 9 minutes ago -
Problem 5-4A (Part Level Submission) Wolford Department Store is
located in midtown Metropolis. During the past...
asked 10 minutes ago -
Preparation of Benzoic Acid using a Grignard Reagent URGENT
1. During your Grignard formation, a small...
asked 33 minutes ago -
A uniform magnetic field is perpendicular to the plane of a wire
loop. If the loop...
asked 31 minutes ago -
At the peak of your career, your were earning $120,000 and
holding a top level position....
asked 35 minutes ago -
. A permanent magnet is dropped south-end-down through a horizontal
circular coil with a radius of...
asked 37 minutes ago -
Bernie's Beverages purchased some fixed assets classified as
5-year property for MACRS. The assets cost $28,000....
asked 51 minutes ago -
How many ATPs are produced from the catabolism of a 10-C
molecule of fatty acid under...
asked 55 minutes ago -
Before practicing a routine on the rings, a 64.8 kg gymnast
hangs motionless, with one hand...
asked 57 minutes ago -
If the K b of a weak base is 6.3 × 10 − 6 , what...
asked 1 hour ago -
Which of the following is the minimum amount of moles of NaOH
that must be added...
asked 1 hour ago