Homework Answers
Answer:
acetophenone
Used THF as a solvent. LiHMDS/THF mixtures affect clean enolization. The advantage that it is a relatively inert water-miscible ether. The low boiling point is convenient because it makes the solvent easy to remove from the chemical reaction by evaporation.
THF is a popular solvent when its water miscibility is not an issue. It is more basic than diethyl ether and forms stronger complexes with Li+, Mg2+, and boranes. It is a popular solvent for hydroboration reactions and for organometallic compounds such as organolithium and Grignard reagents.
To get faster reactions used hydrocarbon, THF/hydrocarbon mixtures so that more Li-ion can easily free and react with acetophenone.
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4. The choice of solvent for the reaction below can have a drastic effect on the...
Organic chemistry post-lab question: "Why is important to add the alkyl halide dropwise in your reaction?...
Organic chemistry post-lab question: "Why is important
to add the alkyl halide dropwise in your reaction? (Hint: your
reaction is not heated, but you still need a water-cooled
condenser!)" Please answer in detail!
Here is a copy of the experiment, thank you!
The Grignard reaction is an important synthetic process by which a carbon-carbon bond is formed. Magnesium metal is first reacted with an organic halide. The resultant organo-magnesium halide (Grignard reagent) is then combined with a carbonyl compound, ultimately...
1. Consider the SN2 reaction shown below and answer the following questions.nobl 8 acetone no t...
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Find the crude yield and percent yield of trans-4-methoxycinnamic acid Find the crude and percent yield...
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Organic chemistry post-lab question: "Why is important
to add the alkyl halide dropwise in your reaction? (Hint: your
reaction is not heated, but you still need a water-cooled
condenser!)" Please answer in detail!
Here is a copy of the experiment, thank you!
The Grignard reaction is an important synthetic process by which a carbon-carbon bond is formed. Magnesium metal is first reacted with an organic halide. The resultant organo-magnesium halide (Grignard reagent) is then combined with a carbonyl compound, ultimately...
1. Consider the SN2 reaction shown below and answer the following questions.nobl 8 acetone no t iNaSCH SCH, + NaBr worl s1918. A. Write the rate law for the reaction. ebiler vil ar to nollurunoonoo oli nison. B. Identify the nucleophile and the electrophile in the reaction. HOCH lo noiden nog orgnismanl.d C. State how each of the following factors would affect the rate of the reaction. CHOW CHOOH glasa a. Increasing the concentration of 1-bromopropane. b. Decreasing the concentration...
Find the crude yield and percent yield of trans-4-methoxycinnamic
acid
Find the crude and percent yield of ethyl trans-4
methoxycinnamic acid
Synthesis of trans-4-methoxycinnamic acid 0.585 gused To a 25 mL round-bottom flask equipped with a stir bar, add 1 mL of pyridine (Caution! Pyridine is toxic!) followed by 320 mg of 4-methoxybenzaldehyde, 320mg 10. 200ML 585 mg of malonic acid and 33 mg of B-alanine. Clamp the round-bottom flask Ucdi over a stir plate in a sand bath and...
Based on the Wittig Reaction exp. below, please answer a) and
b). In b) you can disregard the part about the IR, just please
interpret and assign protons, shift values, which protons are for
which groups, etc on the HNMR. The % yield was 34%, and MP was
lower than expected (to assist with answering part a). This should
be all the information you need to answer the question.
HNMR
Discuss the percentage yield of the reaction. Explain and provide...
Experiment Write Up Proposal You will write up a synthesis procedure for one reaction that could be potentially run in a face- to-face Chem 2321 lab session. Your proposal will include an introduction and procedure. The procedure will include step-by-step instructions for running the reaction (including reaction monitoring), work-up. (product isolation and purification), and analysis (characterization). You will need to include sample calculations for percent yield and provide sample spectra analysis. You must upload your proposal as a single document...
i need help with the postlab questions please
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepare a Grignard reagent, phenyl magnesium bromide, from bromobenzene and magnesium metal. The Grignard reagent will then react with methyl benzoate to form triphenylmethanol. Introduction Grignard reagents, such as organomagnesium halides, were discovered in 1910 by French chemist Victor Grignard. The Grignard reaction is one of the most general methods for carbon- carbon bond formation in all of organic chemistry....
mulitple choice review question 4 homework help ?
.. Boost 7:48 PM 18% < Optional-Econ 1... Q Û Û Chapter Multiple Chaise Ouestions: 1. Which of the following is the best definition of economics from the choices provided Economies is the study of how to get rich by playing the stock market the best ways to reduce people's wants, given the scarcity of Tec how goverment officials determine what goods should be peoduced d. money and why it is good...
i need help with the prelab questions please
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Help on prelab
NOTE! There are FOUR (4) pages in this pre-lab! PRE-LAB WORKSHEET FOR ENZYME LAB To be completed prior to the online prelab esercise 1 ) Suppose that the diagram below represents what occurs during a chemical reaction e) Which letter points tq the prodact? print e ore , d 3) (c) Which letter points to the enzyme? (d) Which letter points to the enzyme's active site? (e) Which letter points to the enzyme's substrate? Note: Some letters...
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