Draw structural formulas for the a,ß-unsaturated aldehyde or ketone and the lithium diorganocuprate (Gilman reagent) that could be used in a synthesi of the compound shown below. CH3 H
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A: CH3 – C = O – CH2CH3 → CH3 – C – OMgBr – CH3 – CH2CH3 → CH3 – C – OH – CH3 – CH2CH3
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- Write a cleare scientific prosedure of preparing-4-(bromomethyl)phenol from 4-methyl phenol by adding NBS as reagent in laboratory, and what is the purification technique that will used to purify4-(bromomethyl)phenol at the end?Study the curved arrows in the reactions below and provide the structures of theproduct(s) formed. One block may represent more than one product/by-product.Chemistry please provide the flow of electrons aswell!! thank you! using the starting material (on the left) to determine the sythetic route which will be the most reaosnable and effective to theres none, you have to start witth the begin products to get to finish needed by using the minmium reagents and reactions needed to get to the final product
- Can you write down retrosynthesis ( RSA)and show pilar dont provide hnadwriting solution...Given this organic synthesis, is there any limiting and excess reagents? also describe the procedure is run, how is the reaction monitored?Is the order fo addition important? N-ETHYLALLENIMINE[Aziridine, 1-ethyl-2-methylene-] Submitted by Albert T. Bottini and Robert E. Olsen1.Checked by Thomas H. Lowry and E. J. Corey. 1. ProcedureCaution! This preparation should be carried out in a good hood to avoid exposure to ammonia. The operator should wear rubber gloves and protective goggles because 2-haloallylamines and ethylenimines can cause severe skin and eye irritation. A 2-l. three-necked flask is fitted with a sealed mechanical stirrer, a gas-inlet tube, and a dry ice condenser protected from the air by a soda-lime drying tube (Note 1). The system is flushed thoroughly with dry ammonia, and 32.8 g. (0.84 mole) of sodium amide (Note 2) is added to the flask. The system is again flushed with ammonia, the condenser is provided with dry ice covered by acetone, and 1.2 l. of liquid…Answer all questions. ai. Give the structure of the product formed from the reaction of propanal with 1M ethanol in dry acid. ii. What happens when Further 1M of ethanol is added to the reaction in i above?
- Can someone explain the answers to 28, 29, and 30? The answers are B, A, A. I understand lindar catalyst makes cis alkenes and Na/NH3 makes trans alkenes but I dont understand how the second step of Br2, OsO4 influences the stereochemistry between the 2 . Will rate quickly if helpful. Thanks!Please complete all these reactions in handwritten! I will upvote you!Compound X is insoluble in cold KMnO4, Br2 in CCl4, and conc. H2SO4. Compound X is most likely: a. an alkane b. none of these c. an alkene d. an alcohol e. an alkyl halide Indicate which of the ff. statements regarding nucleophilicity is incorrect. F- is more nucleophilic, hence, more reactive towards methyl iodide than Cl-. Second row elements are more nucleophilic than first row elements of comparable basicity. The rate of SN2 reaction may be markedly affected by the nucleophilicity of the attacking atom. Nucleophilicity is the affinity of a nucleophile to an electrophilic carbon Which of the following alkynes can be deprotonated by NaNH2 in liquid NH3? 3-Methylhex-2-yne Pent-2-yne 3-Methylbutyne none of these Hex-3-yne
- 5. Write a Full synthesis of diclofenac sodium in details (the reagents and the name of the reactions in each steps) with the reliable reference.write definitions and 2/3 examples wherever appropriate. 1.Nucleophile 2.Electrophile 3.α and β positions in alkyl halide 4.identify primary (1o), secondary (2o), and tertiary (3o), substrates. 5.Regioselectivity 6. Zaitsev ruleOrganotin compounds play a significant role in diverse industrial applications. They have been used as plastic stabilizers and as pesticides or fungicides. One method used to prepare simple tetraalkylstannanes is the controlled direct reaction of liquid tin(IV) chloride with highly reactive trialkylaluminum compounds, such as liquid triethylaluminum (Al(CzHs)3). 3SnCl4 + 4Al(C2H5)3 → 3Sn(C2H5)4 + 4AlCl3 In one experiment, 0.160 L of SnCl4 (d= 2.226 g/mL) was treated with 0.346 L of triethylaluminum (Al(C2H5)3); d = 0.835 g/mL). What is the theoretical yield in this experiment (mass of tetraethylstannane, Sn(C2H5)4)? If 0.257L of tetraethylstannane (d= 1.187 g/mL) were actually isolated in this experiment, what was the percent yield?