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- What structural effects do the ff. gods exhivit? Enumate all. Then identify the predomumant effect. (a) ÇHs NO2 い) (c)Heating compound X with aqueous formaldehyde forms Y (C17H23NO), which has been converted to a mixture of lupinine and epilupinine, alkaloids isolated from lupin, a perennial ornamental plant commonly seen on the roadside in parts of Alaska. Identify Y and explain how it is formed. HO но CH=0 one step NH2 C,,H23NO lupinine epilupinine PhAbout defroxamine (all are correct except Select one: it is a water instable compound produced as injectable powder for instant reconstitution used to treat hemochromatosis due to its poor GIT absorption administered as I.M and I.V injection the precursor is a ferric ion natural product obtained from the bacteria Streptomuces pilosis modified through removal of iron III then converted as mesylate salt its a tridentate chelating agent of great water solubility as well as stability forming a hexagonal complex
- The pKa, of the conjugate acid of morpholine is 8.33. (a) Calculate the ratio of morpholine to morpholinium ion in aqueous solution at pH 7.0. (b) At what pH are the concentrations of morpholine and morpholinium ion equal?Which method can be used to prepare CH3CH2CH2CH2NH2? NH3 (large excess) (a) CH3CH2CH2CH2B. (1) NaCN (2) LİİAIH, (3) H20 (b) CH3CH2CH2B NH3, mild acid (c) CH3CH2CH2CHO NABH3CN or NABH4 (d) All three methods would work. Answer (a)(a) What weight of glycine (pKal- 2.4; pKa - 9.6), and what volume of IM HCI are required to make 100 ml. of 0.3M buffer, pH 2.4? (b) What weight of glycine and what volume of IM NaOH are required to make 100 ml of 0.3M buffer, pH 9.3? Remember that glycine is sold as the zwitterion salt.
- Trans-amminecarbonyl-bis(ethylenediamine)iron(III) cation is optically active (i.e. has a non-superimposable mirror image). Select one: O True O False7. Answer all parts of this question. The synthesis of the drug minoxidil is shown below. Minoxidil is a K+ channel opener and vasodilator used in the treatment of hair loss. CI NH2 POCI3 NH3 HN NH [6] CI CI [7] CI NH2 (13) (14) [8] MCPBA NH2 NH NH2 No N. NH2 [9] CI NH2 (15) Minoxidil (a) The synthesis of compound (13) is achieved using three molar equivalents of phosphoryl chloride. This reaction [6] proceeds via a mechanism similar to that seen in the Vilsmeier reaction. Provide a complete mechanism for the substitutions of all three oxygens. What is the driving force for this reaction [6]? NN 8.d-Glucuronic acid is found widely in plants and animals. One of its functions is to detoxify poisonous HO-containing compoundsby reacting with them in the liver to form glucuronides. Glucuronides are water soluble and therefore readily excreted. Afteringestion of a poison such as turpentine or phenol, the glucuronides of these compounds are found in the urine. Draw thestructure of the a- and b-glucuronides formed by the reaction of b-d-glucuronic acid and phenol.