Sp06Ex3Ans - NAME (Print): _ SIGNATURE: _ Chemistry 310N...

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Chemistry 310N Dr. Brent Iverson 3rd Midterm April 27, 2006 NAME (Print): _____________________________ SIGNATURE: _____________________________ Please Note: This test may be a bit long, but there is a reason. I would like to give you a lot of little questions, so you can find ones you can answer and show me what you know, rather than just a few questions that may be testing the one thing you forgot. I recommend you look the exam over and answer the questions you are sure of first , then go back and try to figure out the rest. Also make sure to look at the point totals on the questions as a guide to help budget your time. Note: You must have your answers written in pen if you want a regrade!!!! Please print the first three letters of your last name in the three boxes For synthesis problems GO FOR PARTIAL CREDIT EVEN IF YOU DO NOT KNOW THE ENTIRE ANSWER!!!WRITE DOWN WHAT YOU DO KNOW IS IN THE REACTION SEQUENCE SOMEWHERE. YOU WILL GET PARTIAL CREDIT IF IT IS CORRECT
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10 9 8 7 6 5 4 3 2 (28) (24) (32) (16) (29) (18) (33) (12) (24) (11) (14) (13) (19) (273) 11 1 Page Points Total T Score 12 13
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CH 3 CH 2 - H R 2 C C H H H -N( i- C 3 H 7 ) 2 RC C H COR' O RC H 2 CR' O RC H 2 CH O RC H 2 CCl O RC H 2 RCH 2 O H HO H ROC O COR' O C H 2 RC O COR' O C H 2 RC O CR' O C H 2 H 4 N CO- H O R RCH 2 O H 2 H 3 O H -Cl 10 51 -7 Compound pK a 3-5 15.7 16 18-20 11 23-25 18-20 13 15-19 40 Carboxylic acids β -Dicarbonyls β -Ketoesters β -Diesters Water Alcohols Acid chlorides Aldehydes Ketones Esters LDA Alkanes Terminal alkynes 25 Terminal alkenes 44 9.2 Ammonium ion Hydronium ion Hydrochloric acid Protonated alcohol -2 -1.7
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Signature_________________________ Pg 1 _____________(28) True False 2. (2 pt. each) Here are a number of statements regarding aromaticity or other general aspects of organic chemistry. Do not second guess yourself, this is not meant to be tricky! Check the appropriate box to indicate whether the statement is true or false. B. According to Huckel's rule, aromatic molecules are flat, monocyclic, all ring atoms have a 2p orbital (no sp3 ring atoms) and there are 4n + 2 pi electrons (i.e. 2, 6, 10, 14. ....). A. When using molecular orbital theory, it is best to think of electron density as being like waves, since it is described mathematically using wave equations. C. Most reactions you have learned in this class involve nucleophiles reacting with electrophiles. D. Electrophiles are areas in molecules with relatively high electron density. E. Nucleophiles are areas in molecules with relatively low electron density. F. When drawing mechanisms, arrows are used to indicate the flow of electrons from electrophiles to nucleophiles. G. A strong resonance effect due to aromaticity can stabilize a postive charge, negative charge, or unpaired electron density on atoms attached to an aromatic ring. 1.
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Sp06Ex3Ans - NAME (Print): _ SIGNATURE: _ Chemistry 310N...

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