Question 18 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: ? ? two enantiomers 1) PhMgCl 2) H₂O 1.03 2. Me₂S 1) NaNH, CI (excess) H2SO4, H₂O HgSO4 Br 16 1) n-BuLi 2) H₂O 2) H2 Lindlar's catalyst A B C 2.2. OH ▪OH + об 2.2 OH OH OH D + ...OH OH OH •08.08 Α ABCD
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- 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 quickly thanks ! 3.Please write out the major reaction and side-reaction in the preparation of ter-butyl.chloride, and write out the key points to use separation funnel in this process.Pls solve this question correctly in 5 min i will give u like for sure Balance the chemical equation of a reaction formed by the bromination of trans-cinnamic acid if we started with 0.3088 grams of trans cinnamic acid and 1mL of bromine. The product of this reaction is 2,3 - dibromo - 3- phenylpropanoic acid
- During an acid base extraction of an organic compound dissolved in dichloromethane with sodium bicarbonate (NaHCO3), you do not recover any of the desired extracted product after completing all the remaining steps. What could the most probable reason(s) be for the observed outcome? -The organic compound you want to extract is also a base; an acid is needed -You did not degassed/vent the separatory funnel -You did not shake the separatory funnel enough to react the base with the organic compound -You did not heat the mixture before the extraction -The organic compound evaporate from separatory funnel during the extractionMake a table of the physical properties (molar mass, MPT, BPT density and mass used/needed) for the reduction of benzophenone lab reactions. (bezhydrol is the product of reaction). Plz do fast asap, urgent.Methylating agents are substrates that deliver methyl groups to nucleophiles, and so are themselves electrophilic. What is the most common methylating agent (a) in the laboratory and (b) in biological systems? Discuss their similarities and differences... Solve it asap
- I’m currently trying to write a lab report for the synthesis of dimolybdenum tetraacetate [Mo2(O2CCH3)4] from the reaction of molybdenum hexacarbonyl, Mo(CO)6 in glacial acetic acid and acetic anhydride under a nitrogen atmosphere, involving the difficult formation of a quadruple bond and requires high heat and long reaction time (approximately 20 hours). But these are the question I’m stumped on: 1. Why need the reaction be done under nitrogen? We also added dichlorobenzene and hexanes during the reaction. 2. Explain the purpose of dichlorobenzene and hexanes. 3. Why does the reaction take 20 hrs?Describe how the product is purified. 4,4'-DIBROMOBIPHENYL [Biphenyl, 4,4'-dibromo-] Submitted by Robert E. Buckles and Norris G. Wheeler1. Checked by R. S. Schreiber, Wm. Bradley Reid, Jr., and Robert W. Jackson. 1. Procedure In a 15-cm. evaporating dish is placed 15.4 g. (0.10 mole) of finely powdered biphenyl (Note 1). The dish is set on a porcelain rack in a 30-cm. desiccator with a 10-cm. evaporating dish under the rack containing 39 g. (12 ml., 0.24 mole) of bromine. The desiccator is closed, but a very small opening is provided for the escape of hydrogen bromide (Note 2). The biphenyl is left in contact with the bromine vapor for 8 hours (or overnight). The orange solid is then removed from the desiccator and allowed to stand in the air under a hood for at least 4 hours (Note 3). At this point, the product weighs about 30 g. and has a melting point in the neighborhood of 152°. The crude 4,4'-dibromobiphenyl is dissolved in 75 ml. of benzene, filtered, and cooled to 15°. The…What happens when (write reactions involved) iv and v
- In light of your answer to Problem 30-40, explain why a mixture of products occurs in the following reaction:E. J. Coreys 1964 total synthesis of -caryophyllene (essence of cloves) solves a number of problems of construction of unusual-sized rings. The first step uses an efficient photochemical [2 + 2] reaction. The desired stereochemistry and regiochemistry had been predicted based on model reactions. (a) [2 + 2] Reactions are quite common in photochemical reactions. Would this reaction be predicted to occur in the ground state? The next steps follow. Basic alumina is a chromatography support that will often act as a base catalyst. (b) What is the mechanism of the first step? (c) What is the mechanism of the second step? (d) Look at later steps in the synthesis. Does the stereochemistry of the added carbomethoxy group matter? The next steps are shown here. (e) What is the structure of compound (A)? (f) Give a mechanism for the formation of the cyclized product. (g) Give a mechanism for the first step. Hint: Attack on the lactone carbonyl may be the first step. (h) Give a structure for product (B). The following two steps are next. (i) Show the reactions of (B). (j) Write a mechanism for the ring-opening reaction. Hint: Note the presence of an acidic proton and a good leaving group in the molecule. The synthesis was completed by the following steps. (k) What is (C)? (l) What reagents would you use for these transformations?Are there any other possible products for the following reaction in catalytic H2SO4 and H2O?