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4. Alkanes and Cycloalkanes

Naming Alkenes

4. Alkanes and Cycloalkanes

Naming Alkenes

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How to name alkenes and alkynes

How to name alkenes and alkynes

Johnny Betancourt

Name the following alkene

Name the following alkene

Johnny Betancourt

Practice this topic

Multiple Choice

Provide the complete, IUPAC name for the following molecule.

Textbook Question

Draw the structure and give the systematic name for a compound with molecular formula C5H12 that has (a) only primary and secondary hydrogens.

Textbook Question

What is each compound's systematic name? c.

Textbook Question

What is each compound's systematic name? b.

Textbook Question

What is each compound's systematic name? a.

Textbook Question

What is each compound's systematic name? g. h.

Textbook Question

What is each compound's systematic name? e. f.

Textbook Question

What is each compound's systematic name? d.

Textbook Question

What is each compound's systematic name? a. b.

Textbook Question

Name the following: d. e. f.

Textbook Question

What is each compound's systematic name? c. d.

Textbook Question

Draw a structure for each compound (includes old and new names). a. 3-methylpent-1-ene b. cis-3-methyl-3-hexene c. 3,4-dibromobut-1-ene

Textbook Question

The following names are all incorrect. Draw the structure represented by the incorrect name (or a consistent structure if the name is ambiguous), and give your drawing the correct name. c. 2-methylcyclopentene d. 6-chlorocyclohexadiene

Textbook Question

Give a correct name for each compound. a. CH3-CH2-C=CH2(CH2CH2CH3) b. (CH3CH22C=CHCH3

Textbook Question

Give the systematic (IUPAC) names of the following alkenes. a. CH2-CH-CH2-CH(CH3)2 b. c. CH2=CH-CH2-CH=CH2

Textbook Question

Give the systematic (IUPAC) names of the following alkenes. d. CH2=C=CH-CH=CH2 e.

Textbook Question

Which of the following names are correct? Correct those that are not correct. e. 4,4-dimethyl-2-pentyne f. 2,5-dimethyl-3-hexyne

Textbook Question

A student was given the structural formulas of several compounds and was asked to give them systematic names. How many did she name correctly? Correct those that are misnamed. a. 4-ethyl-2-pentyne b. 1-bromo-4-heptyne

Textbook Question

Which of the following names are correct? Correct those that are not correct. a. 4-heptyne b. 2-ethyl-3-hexyne

Textbook Question

A student was given the structural formulas of several compounds and was asked to give them systematic names. How many did she name correctly? Correct those that are misnamed. c. 2-methyl-3-hexyne d. 3-pentyne

Textbook Question

What is each compound's systematic name? c.

Textbook Question

What is each compound's systematic name? e.

Textbook Question

Name the following: c.

Textbook Question

What is each compound's systematic name? a.

Textbook Question

What is each compound's systematic name? b.

Textbook Question

What is each compound's systematic name? c.

Textbook Question

What is each compound's systematic name? d.

Textbook Question

Name the following: c.

Textbook Question

Name the following: d.

Textbook Question

Name the following: a.

Textbook Question

Name the following: b.

Textbook Question

What is each compound's systematic name? a. CH3C☰CCH2CH2CH2CH═CH2

Textbook Question

Provide the IUPAC names for the following alkenes. (a)

Textbook Question

(•) Using IUPAC rules, name the following molecules. (g)

Textbook Question

Give IUPAC names for the following compounds. (d)

Textbook Question

Write structural formulas for the following compounds (includes both old- and new-style names). (a) 2-octyne (b) ethylisopentylacetylene (c) ethynylbenzene

Textbook Question

b. Draw structural formulas of at least two alkynes of each molecular formula. 1. C6H10 2. C8H12 3. C7H8

Textbook Question

Identify the following alkynes as terminal (T), internal/symmetrical (IS), or internal/unsymmetrical (IU). (a)

Textbook Question

Identify the following alkynes as terminal (T), internal/symmetrical (IS), or internal/unsymmetrical (IU). (c)

Textbook Question

Identify the following alkynes as terminal (T), internal/symmetrical (IS), or internal/unsymmetrical (IU). (f)

Textbook Question

Identify the allylic carbon(s) in the following molecules. (c)

Textbook Question

Identify the allylic carbon(s) in the following molecules. (b)

Textbook Question

Identify the allylic carbon(s) in the following molecules. (a)

Textbook Question

How many hydrogens would you expect a 24-carbon compound from each of the following molecular classes to have?

(b) Alkene

Textbook Question

a. How many vinylic hydrogens does cyclopentene have? b. How many allylic hydrogens does it have?

Textbook Question

Draw and label the E and Z isomers for each of the following:

c. <IMAGE>

Textbook Question

How many of the following names are correct? Correct the incorrect names.

a. 3-pentene

b. 2-octene

c. 2-vinylpentane

Textbook Question

How many of the following names are correct? Correct the incorrect names.

d. 1-ethyl-1-pentene

e. 5-ethylcyclohexene

f. 5-chloro-3-hexene

Textbook Question

How many of the following names are correct? Correct the incorrect names.

g. 2-ethyl-2-butene

h. (E)-2-methyl-1-hexene

i. 2-methylcyclopentene

Textbook Question

Which of the following names are correct? Correct those that are not correct. c. 4-chloro-2-pentyne d. 2,3-dimethyl-5-octyne

Textbook Question

Draw a condensed structure for each of the following:

i. diethylacetylene

j. di-tert-butylacetylene

Textbook Question

Draw a condensed structure for each of the following:

k. cyclopentylacetylene

l. 5,6-dimethyl-2-heptyne

Textbook Question

Draw the structure for each of the following:

a. 3,3-dimethylcyclopentene

b. 6-bromo-2,3-dimethyl-2-hexene

Textbook Question

Name the following:

b. <IMAGE>

Textbook Question

The following names are all incorrect. Draw the structure represented by the incorrect name (or a consistent structure if the name is ambiguous), and give your drawing the correct name.

e. 2,5-dimethylcyclohexene

Textbook Question

Write structural formulas for the following compounds

(includes both old- and new-style names).

(d) cyclohexylacetylene

(e) 5-methyl-3-octyne

(f) trans-3,5-dibromocyclodecyne

Textbook Question

Draw the molecular orbital picture of but-2-yne.

Textbook Question

(•••) Draw the molecular orbital picture of pent-1-en-3-yne.

Textbook Question

Draw the skeletal structures for the compounds in Problem 42. d. vinyl bromide e. 1,2-dimethylcyclopentene f. diallylamine

Textbook Question

Draw the condensed and skeletal structures for each of the following: e. 4,4-dimethyl-1-pentyne

Textbook Question

Draw the condensed and skeletal structures for each of the following: b. cyclooctyne

Textbook Question

Draw the condensed and skeletal structures for each of the following: f. dimethylacetylene

Textbook Question

Draw the condensed and skeletal structures for each of the following: d. sec-butylisobutylacetylene

Textbook Question

Draw the condensed and skeletal structures for each of the following: c. isopropylacetylene

Textbook Question

Draw the condensed and skeletal structures for each of the following: a. 1-chloro-3-hexyne

Textbook Question

Draw a condensed structure for each of the following: a. 2-hexyne b. 5-ethyl-3-octyne

Textbook Question

Draw a condensed structure for each of the following: e. methoxyethyne f. sec-butyl-tert-butylacetylene

Textbook Question

Draw the structures and name the four constitutional isomers with molecular formula C4H9Br.

Textbook Question

a. Draw the structures and give the common and systematic names for alkynes with molecular formula C7H12. Ignore stereosiomers. (Hint: There are 14.)

Textbook Question

Draw all internal symmetrical alkynes with the molecular formula C₁₀ H₁₈.

Textbook Question

For each molecular formula, draw all the isomeric alkynes, and give their IUPAC names. Circle the acetylenic hydrogen of each terminal alkyne.

a. (a) C5H8 (three isomers)

Textbook Question

Identify the following halogen-containing compounds as a haloalkane, haloalkene, or haloarene. (b)

Textbook Question

Identify the following halogen-containing compounds as a haloalkane, haloalkene, or haloarene. (e)

Textbook Question

Identify the following halogen-containing compounds as a haloalkane, haloalkene, or haloarene. (f)

Textbook Question

Give common names for the following compounds. (c) 3-methyloct-4-yne (d)

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