StereochemistryWkstKEYF06

StereochemistryWkstKEYF06 - Hands on Handedness -...

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Hands on Handedness - Stereochemistry with Molecular Models Reading assignment: Review chapter 6 in Loudon. Pay special attention to sections 6.1,6.3, 6.4, 6.6 and 6.8. 2-bromobutane. One partner should build 2-bromobutane. The other 1) Complete the drawings (1- and 1') below to re @ Partner, , Partner2sGS 2) 3\ 4) 6) Identify all asymrnetric carbons with an asterisk (+). \ pick up each of the models and look down the asymmetric carbon - hydrogen bond and complete the drawing s 2 and 2' . Assign R or S configuration to each. Does either molecule possess an internal plane of symmetry? Afp the first model on the second? N0 achiral (Circle your answer) 7) WhgLiS,Jhe relationship between the two molecules? Diastereomers Constitutional Isomers Identical :Ji:T}:,:,::"@i; S) What can you conclude about ttre conf'g5$\.of the asymrnetric carbons of enantiomers: Same ry Not related 9) lmagine the molecule (2S, 3R, 4R, 5S)-bigfella. Complete the configuratiolt of the enantiomer of bigfena: (*,3, ,4, , sR.) - bigfella. l0)What is required to convert one molecule into the other so that they are the same (superimposable - point by point)? a) Rotate around o-bond
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a ) Di fferent conformati on l2) Build two models of (R)-2-bromobutane. other. replace Ha HBT BrH D to represent the SAME enantiomer. These are Replace Ha with Br on one model and Hb on the l) Arrange one of the models so that it is in Hec H replace Hb Br o/tt B tv Complete the Crahfrojections B, C, and representations of which of the following?
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This note was uploaded on 05/13/2010 for the course CHEM 151L taught by Professor Roy,christopher during the Fall '08 term at Duke.

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StereochemistryWkstKEYF06 - Hands on Handedness -...

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