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- Bromoetherification, the addition of the elements of Br and OR to adouble bond, is a common method for constructing rings containingoxygen atoms. This reaction has been used in the synthesis of thepolyether antibiotic monensin (Problem 18.34). Draw a stepwisemechanism for the following intramolecular bromoetherification reaction.The alcohol compound güven the formula below is used in perfume making.bromine benzeme and -1 synthesis of this compound using the necessary organic and inor chemicals showThioglycolic acid, HSCH2CO2H, a substance used in depilatory agents (hair removers) has pKa = 3.42. What is the percent dissociation of thioglycolic acid in a buffer solution at pH = 3.0?
- Identify the reagents a-c in the following scheme:The key step in a reported laboratory synthesis of sativene, a hydrocarbon isolated from the mold Helminthosporium sativum, involves the following base treatment of a keto tosylate. What kind of reaction is occurring? How would you complete the synthesis?Identify F in the following reaction sequence. F was converted in several steps to the antidepressant paroxetine (trade name Paxil; see also Problem 9.9).
- select the most appropriate reagent(s) to effect the change. K2Cr2O7, H+ H2, Pd 1. Disiamylborane, 2. HO–, H2O, H2O2 NaOCl H2SO4, HgSO4An allylic alcohol contains an OH group on a carbon atom adjacent to aC—C double bond. Treatment of allylic alcohol A with HCl forms amixture of two allylic chlorides, B and C. Draw a stepwise mechanismthat illustrates how both products are formed.Long explanations are not needed. Direct answers are fine. a. Which of the following organic compounds dissolves in 10% NaOH?I. diethyletherII. 3-methyl-3-pentanolIII. 1-hexanolIV. 2-pentanol b. Which of the following organic compound dissolves in water?I. diethyletherII. 3-methyl-3-pentanolIII. 1-hexanolIV. 2-pentanol