10 - detailed information about exam coverage, ground...

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CH 310M/318M – Lecture 23 – M 3/22/2010 Reading Assignment : No new reading… Graded Homework : HW#11 deadline = 5:00 p.m. on Tue 3/23 HW#12 deadline = 5:00 p.m. on Tue 3/23 Textbook Problems : No new problems… Last Time : Acid-base equilibria Structural factors that influence acid/base strength Today : Structural factors that influence acid/base strength (continued; end Ch Acid-base chemistry in the resolution of enantiomers (begin Midterm Exam #3 coverage) Midterm Exam #2 is scheduled for Thursday, 3/25 from 7:00 to 9:00 p.m. Last name A–Ph report to BUR 106; last name Pi–Z report to WEL 3.502 Assigned seating will be used for this exam. You will find your room and seat assignment in the “My Grades” section of Blackboard. You must take the exam in your assigned room, and sit in your assigned seat!!! Be sure to look at the “Exam Information Sheet” (available in Blackboard) for
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Unformatted text preview: detailed information about exam coverage, ground rules, etc. Early exam students will receive e-mail with further instructions sometime later today C H H 3 C NH 2 (R) (R) C C O OH CH 3 H HO Lactic acid (R)-(50%) C C O O CH 3 H HO C H H 3 C NH 3 Acid-Base Chemistry in the Resolution of Enantiomers The process of separating a racemic mixture into its component enantiomers is called resolution . In practice, the resolution of enantiomers can be difficult, because of the fact that enantiomers have identical physical properties. (optically active) (R)-1-phenylethylamine (chiral) + Relationship? diastereomeric salts Diastereomers typically differ in their physical properties, and thus are more easily separable (separable) C CH 3 H HO C O OH Lactic acid (S)-(50%) + (not separable) C CH 3 H HO C O O (R) C H H 3 C NH 3 (S) (optically inactive) (optically active)...
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This note was uploaded on 10/25/2010 for the course CH 310M taught by Professor Iverson during the Spring '05 term at University of Texas at Austin.

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10 - detailed information about exam coverage, ground...

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