05052010 - CH 310M/318M Lecture 42 W Reading Assignment...

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CH 310M/318M - Lecture 42 W 5/5/2010 Graded Homework : HW#21 deadline = 9:00 a.m. on F 5/7 Last Time : b -elimination reactions of alkyl halides the E2 reaction mechanism Chapter 9 summary Reactions of alcohols with active metals (begin Chapter 10) The final exam is scheduled for Wednesday, 5/12 from 7:00 to 10:00 p.m. The exam will be comprehensive , but a stronger emphasis will be placed on “new” material…a detailed “End of Semester Info” handout will be posted in Blackboard before lecture on Friday The final exam is mandatory failure to take the exam at the NO MAKE-UP/CONFLICT EXAMS WILL BE GIVEN!! ! Reading Assignment : 11.5, 11.7, 11.8, 11.9, 11.10 Today : Other reactions of alcohols Textbook Problems : 10.7-10.11, 10.13, 10.29-10.43, 10.45-10.54
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Alcohols react with HX (X = Cl, Br, I) to yield alkyl halides. This reaction works BEST for 3° alcohols!!! R OH + H X R X + H OH alcohol alkyl halide ??? S N 1 or S N 2!!! A specific example: OH H 3 C ( R )-3-Methyl-3-hexanol * 3° alcohol HCl Cl H 3 C * ( R ) from RETENTION + CH 3 Cl * ( S ) from INVERSION (50%) (50%) OPTICALLY ACTIVE The product is OPTICALLY INACTIVE A substitution reaction that occurs with RACEMIZATION… looks familiar!!! S
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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.

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05052010 - CH 310M/318M Lecture 42 W Reading Assignment...

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