1 2008_test_2a_ - for each of the reactions shown below N 3...

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Chemistry 2203/7 (’08) TEST 2A Name: ____________________________ Page1/1 Marks are in parentheses 1 . (7) For the molecules below, provide a systematic name ( 2 x 2 marks ) and calculate the degree of unsaturation (2 x 1 mark ); Is the molecule on the left a primary, secondary or tertiary alcohol ( 1 mark )? 2a . (1) Which has a higher boiling pt : methanol or methane? Why? 2b . (1) Draw the hydrogen bonds between CH 3 OH and H 2 O. 3a . (8) Show the reagents required to execute the reactions shown below. 3b . (8) Show the starting material required to give the product(s) shown below. SOCl 2 TBAF F CrO 3 , H+ O Cl t-BuO-
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Chemistry 2203/7 (’08) TEST 2A Page 2/2 3c . (8) Show the expected product (s), if any ,
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Unformatted text preview: for each of the reactions shown below. N 3 OH Na F OH OTs H 2 /Pt TsCl HO 4a . (6) MECHANISM. Draw a mechanism for the following reaction, showing all intermediates ( 1 mark ), all curly arrows describing electron movement ( 4marks ) and all charges ( 1 mark ) (if applicable). 4b . (6) Use the appropriate chemical equations to evaluate the equilibrium constant describing the proton exchange between sodium ethoxide (NaEtO-) (pKa of EtOH = 16) and H 2 O (pKa of H 2 O =15.7). 5. (5) Stereochemistry . Indicate which of the molecules shown below is chiral (4 marks). Assign the absolute configuration to any one of the stereogenic (chiral) centres (1 mark)....
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This note was uploaded on 07/28/2009 for the course CHEMISTRY CHEM 2203 taught by Professor Levin during the Spring '08 term at Indian Institute of Technology, Chennai.

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1 2008_test_2a_ - for each of the reactions shown below N 3...

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