In this lab you are doing a condensation reaction between two aromatic aldehydes. Will this type of reaction occur with any two aldehydes or only aromatic aldehydes?
A. This reaction can occur with any aldehydes, non-aromatic aldehydes are smaller, and thus undergo this condensation reaction even faster.
B. This reaction will only occur with aromatic aldehydes; the aromatic ring is required for resonance stabilization of intermediates in the reaction mechanism.
C. This reaction can occur with any aldehydes, any aldehyde can coordinate to the catalyst and result in this condensation reaction.
D. This reaction will only occur with aromatic aldehydes, the aromatic ring destabilizes the starting material making it more reactive.
E. This reaction will only occur with aromatic aldehydes, the aromatic ring coordinates to the catalyst making the reaction more favorable.
option C will be the answer
this type of condensation reaction can occur by both aliphatic and aromatic type of aldehydes
for more knowledge you can check out some name reaction for example benzoin condensation which involve two aromatic aldehydes and aldol condensation which involve aliphatic condensation.
In this lab you are doing a condensation reaction between two aromatic aldehydes. Will this type...
Determine the theoretical and percent yield for this lab
Wednerdouy 13 CH 4521-8: Crossed Aldol Condensation: Synthesls of trans-p-anisalacetophenone Ketones that contain an a-hydrogen (a hydrogen on the C right next door to the carbonyl group) can be tabilized via keto-enol tautomerization, or through the loss of the a-hydrogen to form an enolate anion. enolate anion Enolate ions actas nudbophiles and are considerable more reactive than tois. The enolate on i the subject of today's experiment. The formation of an...
Question 1 Match each reagent with its role in aldol condensation reaction. Not yet answered D-anisaldehyde Choose... Points out of 10.00 dium hydroxide Choose... P Flag question acetophenone Choose... ethanol Choose... Question 2 Not yet answered To purify the aldol condensation product you will have to recrystallize it from methanol. Give the steps in recrystallization procedure the appropriate order numbering. Points out of 10.00 The compound is kept under vacuum for 10 min Choose... + P Flag question The solution...
Can you help me identify reagent (i), Compound 8 and
Compound 12 in the reaction scheme?
You have laboratory data on all the compounds in the
synthesis, however the amount of data available to you varies. Some
have the entirety of the spectral data, others have as little as
the elemental analysis. Use the laboratory data to help you
discover which reaction has been performed.
The lab data for Compound 8 and 12 is as
follows:
You can use any...
Please help with questions 1-5. I have attached the additional
lab information pages for help if you are unclear on anything
please review those.
We were unable to transcribe this imageEAS 97 5. Calculate the theoretical yiel te the theoretical yield of iodinated salicylamide (product) ass Todination reaction. (Show your calculations.) mide (product) assuming a mono- le, your starting material, is shown in Figure 4. ces in the functional group region of the spectrum IR spectrum of salicylamide, your starting...
250 ChemActivity 29 Electrophilic Aromatic Substitution no ChemActivity 29 Part A: Electrophilic Aromatic Substitution (What products are formed when a strong electrophile is added to benzene?) Model 1: (review) Electrophilic Addition of HCI Rani o g cyclohexene carbocation intermediate Run 2 U X benzene This product carbocation intermediate DOES NOT Critical Thinking Questions 1 For Rxn I (above) draw curved arrows showing the mechanism of electrophilic addition of HCl. Include an appropriate carbocation intermediate in the box above. Figure 1:...
9. Identify each of the following molecules as aromatic, antiaromatic or nonaromatic. (For this problem, you may assume that each molecule can and will be planar, if that influences the analysis.) NUMBERS 10 and 11 are BIZZZZ-ONUSI (.e., bonus) 10. In learning about 1,2-vs. 1,4-addition to dienes, we discussed kinetic vs. thermodynamic control Apply what we learned in that discussion to the following reaction, with its reaction coordinate diagram shown to the bottom left. O K THF K B: +...
What is the objective of this experiment?
The reaction solvent for this experiment is xylene. What
property of this solvent makes it a better choice than toluene or
benzene?
Draw the orbitals involved in the 4+2 electrocyclization for
this reaction. Draw the structures of the reactants as best you
can. It may be appropriate to abbreviate the structure of
anthracene.
IR is not provided for this reaction product. Why is IR not
useful for monitoring the reaction or characterizing the...
Prelab questions:1. Make sure the reaction table described above is completed in your notebook.2. Two benzaldehyde molecules combine with one acetone molecule in this aldol reaction. If someone uses 5.0 mL of benzaldehyde and 2.5 mL of acetone to try to improve the yield of product, is this the correct ratio of molecules so that there is no excess? Why or why not?The Aldol Reaction: Synthesis of DibenzalacetonePurpose: Introduce the student to the hands-on chemistry of carbonyl condensations.Warning: Dispose of...
the
weight if the initial product was 3.4 grams of methyl
benzoate.
Who |o yald foR 3.91SSg st prodoct nd product 2.14143 EXPERIMENTAL PROCEDURE SAFETY WEAR nitrile gloves for this experiment. The nitrating moture of sulfuric acidnitric acid (1:1) is a very strong acid system. Do not allow it to come in contact with your skin or clothing. It will cause acid burns if it comes in contact with your skin (and holes an your clothes). Wash any affected area...
Question to answer from the lab: What aspect(s) of the approach taken is/are NOT especially green? What changes might be made to make the overall process greener? The Lab Experiment Summary Polyethylene glycols such as PEG-400 are currently of great interest to organic chemists, since their application as reaction solvents is very intriguing (1). PEG-400 is non-volatile and nonflammable in nature, and also possesses important properties such as recyclability, ease of work-up, thermal stability and economical cost. In addition, the...