2 h2o oh 1 2 h2o li 1 c o oh 1 c o ab c d oh 2

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Unformatted text preview: A OH 2. H2O OH Which synthetic route is the best? + B + 17 18 3 9/15/2010 H C C Br OH C C C H C C H2 Pd/C C H C H C OH PCC Propose a synthesis of C OH H Br the following compound 1. C O from compounds C Li C 2. H2O containing 4 carbon atoms or less. O Li C Br Li C Br C OH Some synthetic problems: Using the following reactions, propose syntheses for the following compounds from reactants containing four carbon atoms or less. C Li Br OH 1. 2. H2O O Li 1. CH2=O 2. H2O + A OH O B + 19 Br some solutions are at the end of these notes 20 Which of the following compounds has the highest boiling point? H H H O H H N H H C H H What changes occur when a liquid boils? H H O H H N H H H C H H Which of the following compounds has the lowest boiling point? NonNon-covalent forces do not exist between molecules in the gas. NonNon-covalent forces are present in the liquid. 21 Choose the correct order with respect to increasing boiling points of the following compounds. H H H O H H N H H C H H Choose Choose the correct order with respect to increasing boiling increasing H points of the following compounds. H H O H O H H H H H C H H N H H N H H C H H H A. D. B. B. E. C. C. F. A. D. B. B. E. C. C. F. NonNon-covalent forces do not exist between molecules in the gas. NonNon-covalent forces are present in the liquid. electronegativities: electronegativities: H 2.1 C N O 2.5 3.0 3.5 4 9/15/2010 Choose the correct order with respect to increasing boiling increasing H points of the following compounds. H H O H O H H H H H C H H N H H N H H C H H H Non-covalent interactions. Are they strong? intra intramolecular interactions (covalent bonds) HO H bp = 100˚ hydrogen bonding (very s...
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This note was uploaded on 12/05/2010 for the course CHE 321 taught by Professor Fowler/sampson during the Fall '08 term at SUNY Stony Brook.

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