310NSp0803032008 - CH 310N MWF 8am Lecture 21 M 3/3/2008...

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CH 310N – MWF 8am – Lecture 21 – M 3/3/2008 Graded Homework : HW#09 deadline = 3:00 p.m. TODAY HW#10 deadline = 3:00 p.m. on Thu 3/6 HW#11 will be posted tonight (due on Mon 3/17) Reading Assignment : No new reading… Textbook Problems : 18.12-18.18 Last Time : Reactions of carboxylic acids (continued…) Today : Carboxylic acid derivatives (Chapter 18) PLEASE READ & UNDERSTAND SECTION 18.1 (nomenclature). YOU WILL BE RESPONSIBLE FOR THIS MATERIAL, EVEN THOUGH WE WILL NOT DISCUSS IT IN LECTURE!!!
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Spectroscopy of Carboxylic Acid Derivatives Let’s compare the IR spectra of various derivatives of butanoic acid: CH 3 CH 2 CH 2 C Cl O C=O stretch, 1802 cm –1 C=O stretch weaker band ~ 1712 cm –1 CH 3 CH 2 CH 2 C O O C CH 2 CH 2 CH 3 O 2 C=O stretching bands, 1819 cm –1 –1 (symmetric and unsymmetric) C=O stretch C–O stretch ~ 1000 cm –1 C–O stretch
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CH 3 CH 2 CH 2 C O O CH 2 CH 3 C=O stretch, 1739 cm –1 C=O stretch C–O stretch ~ 1200 cm
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This note was uploaded on 02/09/2009 for the course CH 310n taught by Professor Iverson during the Spring '08 term at University of Texas at Austin.

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310NSp0803032008 - CH 310N MWF 8am Lecture 21 M 3/3/2008...

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