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Why is hard to stop Friedel-Crafts Alkylation after one reaction, but not the case with FriedelCrafts Acylation?
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- Friedel-Crafts alkylation can be difficult to control. What are some of the experimental methods that can be done to help control the reaction?What is the major intermediate in the Friedel-Crafts alkylation? Why does it imply that Friedel-Crafts alkylations could be difficult to controll?Which one of these molecules can be a reactant in a Friedel-Crafts reaction? and why? a) Anilineb) Benzenesulfonic acidc) Chloroethened) Bromobenzenee) p-Bromonitrobenzene
- which term describes the next mechanistic step in the catalytic cycle of the heck's reactionChemistry Which of the following could successfully undergo a Friedel-Crafts alkylation? A. 1-chloroethene reacting with benzene B. bromobenzene reacting with benzene C. 1-chloropropane reacting with benzene D. 2-chloropropane reacting with nitrobenzeneYou were told that is best to use a methyl halide or a primary alkyl halide for the reaction of an acetylide ion with an alkyl halide. Explain why this is so.
- A problem in dyeing fabrics is the degree of fastness of the dye to the fabric. Many of the early dyes were surface dyes; that is, they did not bond to the fabric, with the result that they tended to wash off after repeated laundering. Indigo, for example, which gives the blue color to blue jeans, is a surface dye. Color fastness can be obtained by bonding a dye to the fabric. The first such dyes were the so-called reactive dyes, developed in the 1930s for covalently bonding dyes containing-NH, groups to cotton, wool, and silk fabrics. In the first stage of the first-developed method for reactive dyeing, the dye is treated with cyanuric chloride, which links to the fabric through the amino group of the dye. The remaining chlorines are then displaced by the-OH groups of cotton (cellulose) or the-NH, groups of wool or silk (both proteins). CI -Cotton Dye-NH, Но-Сotton N' CI CI Dye-NH CI Dye-NH 'N. 0-Cotton Cyanuric chloride A reactive dye Dye covalently bonded to cotton Propose a…drug synthesis from Friedel-Crafts alkylationWhy does Hammett Equation only apply to meta and para substituted rings and not others? Explain