Popular in Organic Chemistry I
Popular in Chemistry
This 13 page Study Guide was uploaded by abirkenholtz on Thursday April 21, 2016. The Study Guide belongs to CHEM 331 at Iowa State University taught by Kraus, G in Spring 2016. Since its upload, it has received 30 views. For similar materials see Organic Chemistry I in Chemistry at Iowa State University.
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Date Created: 04/21/16
Chem 331 Study Guide Chapter 1 Hybridization o sp^3 Single Bonds Tetrahedral o sp^2 Double Bonds Fla o sp Triple Bonds Linear Sigma Bond o Overlap between bonds Pi Bond o Weaker than sigma bond Chapter 2 Electronegativity o Some atoms attract electrons better Formal Charge o Number of valence electrons – number of electrons around the atom Resonance o Delocalization of charge Bronsted Acid o Donates proton Lewis Acid o Accepts electron pair Lewis Base o Donates electron pair pka o The smaller the number, the stronger the acid Hydrogen Bonding o Weak attraction between oxygen/nitrogen and hydrogen Chapter 3 Functional Groups o Alkane o Alkene o Alkyne o Aromatic Ring o Amine o Alcohol o Ether o Halide o Acid o Amide o Ester o Aldehyde o Ketone o Nitrile o Nitro Isomers o Same formula, different structure Carbon Types o Primary C Attached to 1 carbon and 3 hydrogens o Secondary C Attached to 2 carbons and 2 hydrogens o Tertiary C Attached to 3 carbons and 1 hydrogen o Quaternary C Attached to 4 carbons Alkanes o Methane o Ethane o Propane o Butane o Pentane o Hexane o Heptane o Octane o Nonane o Decane Naming Alkanes o Find the longest chain o Lowest number for substituents o List in alphabetical order Newman Projections o Staggered: lowest energy o Eclipsed: highest energy Chapter 4 Cycloalkanes o Strained Cyclopropane Cyclobutane o No Strain Cyclohexane Cis o Groups on the same side Trans o Groups on different sides Chair Form Cyclohexane o Axial and equatorial o Largest substituent in equatorial position Chem 331 Practice Exam 3 1. Please name the following molecules or draw the molecule from the name given. a. b. c. d. 1-bromo-5,5-dimethylcyclohexene e. 2. Fill in the blanks to complete the graphic. 3. Determine the products of each reaction. 4. Propose the possible structures for the missing entries in the following scheme. 5. Purpose a mechanism for the following reaction. 6. Fill in the missing parts of the reactions. 7. Propose a multistep synthesis. Practice Exam 2 1. 2. Determine configuration for the following molecules. 3. Determine if the molecule is chiral or not. 4. How many chiral centers does each molecule contain? 5. Are the following pairs of compounds enantiomers, diastereomers, or the same compound? Use google to look up HNMR/IR problems. Do as many as you can! The more you do the easier it will be! Practice Exam 2 Key 1. 2. Determine configuration for the following molecules. ”R” ”R” 3. Determine if the molecule is chiral or not. Chiral Achiral (Meso) 4. How many chiral centers does each molecule contain? 5. Are the following pairs of compounds enantiomers, diastereomers, or the same compound? a. enantiomers b. diastereomers c. enantiomers d. same molecule
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