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Chapter 14 Organic Compounds with Oxygen and Halogens. CHEM 2124 – General Chemistry II Alfred State College Professor Bensley. Learning Objectives. Identify alcohols, ethers and alkyl halides. Classify alcohols and alkyl halides as 1 ° 2° or 3°
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Chapter 14Organic Compounds with Oxygen and Halogens CHEM 2124 – General Chemistry II Alfred State College Professor Bensley
Learning Objectives Identify alcohols, ethers and alkyl halides. Classify alcohols and alkyl halides as 1° 2° or 3° Determine the properties of alcohols, ethers, and alkyl halides. Name alcohols, ehters, and alkyl halides. Draw the products of the dehydration of alcohols. Determine the products of alcohol oxidation.
Alcohols • Structure and Properties • Classification 1o 2o 3o
Alcohols B. Shape and bond angle: C. Polarity: D. Intermolecular Forces:
Alcohols E. Melting points and boiling points: F. Solubility: 2 C’s in chain water soluble 8 C’s in chain water insoluble
Alcohols • Nomenclature Give the IUPAC name of the following alcohol. Example • Common Names • Diols and Triols
Alcohols • Interesting Common Alcohols • Methanol (CH3OH) • Ethanol (CH3CH2OH) • 2-Propanol (CH3)2CHOH), isopropyl alcohol • Ethylene glycol (HOCH2CH2OH) • Glycerol [(HOCH2)2CHOH]
Alcohols • Reactions of Alcohols A. Oxidation • # of C—O bonds, # of C—H bonds
Alcohols B. Dehydration (Elimination Reaction) – Major Lab #2
Alcohols • Asymmetric alcohols can form two possible products. H H H H H H H C1 C2 C3 CH3 + H2O H C1 C2 C3 CH3 OH H H H H2SO4 1-butene H H H + H2O H C1 C2 C3 CH3 2-butanol H major product: 2-butene • Zaitsev Rule
Ethers • Structure and Properties A. Shape and bond angle: B. Polarity: C. Intermolecular Forces?
Ethers D. Melting and Boiling Points: E. Solubilities:
Ethers • Nomenclature Simple ethers are usually assigned common names: methyl ethyl ethyl ethyl ethyl methyl ether diethyl ether More complex ethers are named using the IUPAC system: CH3CH2 CH3 O O CH2 CH2 CH3 CH3 CH3O— methoxy CH3CH2O— ethoxy
Alkyl Halides • Structure and Properties 1o 2o 3o • Polarities, Intermolecular forces, Melting and Boiling Points, Solubility
Alkyl Halides • Nomenclature Give the IUPAC name of the following alkyl halide. Example