4. Purification of the diphenylacetylene product obtained from Part B involves the addition of awater:methanol mixture to the reaction mixture (step d), followed by filtration and washing withwater (step e). Explain how these steps allow for the purification of the product. Be sure to outlinewhat starting material(s) or reagents is/are being removed in each step.

Summary of Purification StepsAddition of WaterMixture (Step d):Purpose: Precipitate…

Answered: 4. Purification of the…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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3. Propose a reaction scheme to synthesize the following compound using only 1-pentene and 1-bromopropane as sources of C in the final structure. You may use other reagents and solvents as needed.
Starting with benzene and using any other reagents of your choice, design a synthesis for the following compound: OEt CI & NO₂ The target molecule above can be prepared by treating benzene with some reagent or combination of the reagents listed below. Give the necessary reagents in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A 1) EtMgBr 2) H₂O¹ D NaOEt, heat B HNO₂, H₂SO4 E NaOH, heat C D F Cl₂, AICI CH-CH₂COCI, AICI
Rank the following hydrocarbons in order of decreasing rates of light-catalyzed bromination. Give the theoretical explanation for the order. Also, give the major bromination product for each.
5B Using benzene as a raw material and reagents of your choice, propose a method of preparing 4-ethylaniline
Give the structure of the organic product formed after the following series of reactions. Br Gee die struktuur van die organiese produk wat gevorm word na die volgende reeks van reaksies. 1) Mg 2) 4-methylpentanal | 4-metielpentanaal 3) PBr3 4) propylamine | propielamien 5) NaHCO3
Provide the structure of the two organic product(s) which results when 2-bromo-2-methylbutane is treated with sodium ethoxide.
Draw structures for all mono-chlorinated products formed from the radical chlorination of pentane. Under each structure, indicate the class of hydrogen replaced (i.e., 1°, 2° or 3°) to form this compound and write its IUPAC name.
Some 2-methyl-2-butene may be produced in the reaction as a by-product. Give a mechanism for its production.
7. Compound AA, C4H®O, gives a positive result (formation of a silver mirror) when reacted with Tollen's reagent. Reduction of compound AA with lithium aluminium hydride, LİAIH4 followed by acidified water, H3O* produces an alcohol, BB. Oxidation of BB with hot acidified potassium dichromate, K2Cr207 gives butanoic acid, C3H7COOH. Esterification between butanoic acid and methanol, CH3OH produces compound CC. Dehydration of compound BB using concentrated sulphuric acid, H2SO4 at a temperature of 180°C produces compound DD.
Suggest a strategy for converting 1-methylcyclohexene into 1-cyclohexylmethanol. Provide the structures for the major organic products frormed in each step.
Show the synthesis of 2-butanol using methyl bromide and other necessary reagents via a) Grignard reaction b) Gilman reaction Include in your solution the preparation of the reagent. Also show the steps of synthesis and the flow of electrons using arrow formalism.

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