Chapter 22-Organic Chemistry Chapter 22 key concepts: Naming/Drawing alkanes/cycloalkanes Naming/Drawing alkenes Naming/Drawing alkynes Naming/Drawing aromatics Structural Isomers Geometric Isomers (cis/trans) Cracking Reactions Reforming Reactions Fractional Distillation Naming/Drawing Organic Halides 1. Name the following Organic Compounds: a) c) b) e) d) f) g) h) i) 2. Draw the following organic compounds: a. 2,4,4-trimethyl-1-pentene b. 1,2,3-triphenylheptane c. 1,3-dibromo-2-chloro-5-methylcylcohexane d. 3,3-difluoro-1,4-pentadiene e. 4–ethyl–2,6–dimethyl–2–heptene. f. 1,1-dichlorobenzene 3. Based on what you know about the ability of a carbon-carbon double bond to rotate, do these two structures represent isomers, or are they just the same molecule? Cl Cl Cl H H C C H H C C Cl 4. Label this alkene as the “cis” or “trans” isomer. Draw the other isomer beside it. CH3 H C H CH3 CH2CH3 C C CH2CH3 H C H 5. Can this alkene exist as cis and trans isomers? To find out, try to draw and label the two isomers. CH3 H C C CH3 H 6. Draw the reactants and draw and name the possible products for the following reactions(if there are more then one possible set of products name at least two): a. Pentane is cracked b. Heptane is cracked c. Propane and butane undergo a reforming reaction d. Benzene burns in air 7. a) b) c) d) Draw and classify the following reactions: Nonane → pentane + butane Heptane + Oxygen → Carbon dioxide and water Methane + Ethane → propane Octane → ethane + hexane 8. Explain why smaller hydrocarbons are distilled off higher in the fractionating column then the larger ones. Chapter 23-Organic Chemistry continued Chapter 23- Key concepts Naming/Drawing alcohols Naming/Drawing aldehydes Naming/Drawing ketones Naming/Drawing carboxylic acids Naming/Drawing esters Addition reactions Substitution reactions Esterfication reactions 1. Name and classify the following organic compounds: a. b. CH3CH2CHCHCH2CH2 OH c. Cl CH3 d. e. g. h. f. i. j. k. 2. Draw the following Organic compounds: a. 2-bromopentanoic acid b. 1, 3-pentanediol c. 10-chloro-1-decanol d. 2,3,4,5-tetrachlorohexanal e. 2-chloro-6-methylheptanoic acid f. ethyl 3,4-dimethylhexanoate g. 4-methylpentyl-3-chlorohexanoate h. 2-bromo-6-phenyl-3cyclopropyl-7-nonanone l. 3. If you react 3- heptene with hydrogen bromide, which of the following is a possible product? a. 2-bromoheptane b. 3-bromoheptene c. 4-bromoheptane d. 3,4-dibromoheptane 4. Which of the following reactions could be used to synthesize 1,2-dibromopropane? 5. Draw and name all possible products for this reaction (there are two): (It will be helpful to first draw the full structural formula of the alkane.) CH3CH2CH3 + Br2 ? 6. Draw and name all possible products for these reactions and classify the reaction. a. CH3 CH2CH3 C + C CH3 I2 CH2CH2CH3 b. Br H + C C CH3 HCl H c. Benzene + Iodine → d. 3,4-dimethyldecanoic acid + 1-propanol → e. 2,4-dichlorohexanoic acid + 3-methyl-1-pentanol → f. cyclohexane + chlorine → g. 4-methyl-2-hexyne + excess fluorine → h. chlorobenzene + bromine → 7. Determine the starting compound (reactant) that would produce the following product: Cl Cl + 2 Cl2 CHCH Cl Cl For further review, check out these websites: http://herh.ccrsb.ca/staff/FarrellL/downloads11.htm#org http://vuchemistry.com/resources/Organic+Review+Worksheet+Resource.doc