14C_s11_lec01_finalB

14C_s11_lec01_finalB - Chem 14C Lecture 1 Spring 2011 Final...

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Chem 14C Lecture 1 Spring 2011 Final Exam Part B Page 1 Page 1 score = Concerta (methylphenidate HCl) is a drug used for treatment of attention deficit hyperactivity disorder (ADHD). It works by enhancing dopamine and norephedrine function in the brain. Concerta is derived from molecule A as shown below. Molecule A and Concerta are both synthetic (man-made) substances; they are not produced by any organisms. N OCH 3 O Cl H H HN OCH 3 O Molecule A Concerta 1. (3) List all of the functional groups in molecule A . 2. (2) Give numbers: Molecule A has __________ lone pairs and ________ atoms that are more electronegative than carbon. 3. (2) The most polar bond in molecule A is (circle one): C–C C–H C–N C–O N–H N–O H–O 4. (4) Draw another, very important resonance contributor for molecule A . Include all formal charges and lone pairs. Neatness counts . H N O O CH 3 5. (1) In question 4, the most significant resonance contributor is (circle the best answer): (a) The structure already given (c) Both structures are of approximately equal significance (b) The structure I drew (d) Their relative significance cannot be determined 6. (6) Clearly but concisely define each term. (a) Conjugation : (b) Aromaticity : (c) Anomeric carbon :
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Chem 14C Lecture 1 Spring 2011 Final Exam Part B Page 2 Page 2 score = 7. (2) Draw a molecule that has exactly ten carbon atoms, any number of atoms of any other elements, and which has all of the properties described in question 6. Neatness counts . 8.
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14C_s11_lec01_finalB - Chem 14C Lecture 1 Spring 2011 Final...

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