Chapter 7.2: Nomenclature of Alkynes
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How do you name an alkyne with more than one triple bond?
o If a hydrocarbon chain contains more than one triple bond, we use the infixes -adiyn-, -atriyn-, and so forth
How are common names for alkynes derived?
o Common names for alkynes are derived by prefixing the names of substituents on the carbon-carbon triple bond to the word acetylene
Define terminal alkynes
an alkyne in which the triple bond is between carbons 1 and 2
What is the infix used to describe alkynes?
o According to the rules of the IUPAC system, the infix -yn- is used to show the presence of a carbon-carbon triple bond
Describe how to name an alkyne
IUPAC Rules o For larger molecules, number the longest carbon chain that contains the triple bond from the end that gives the triply bonded carbons the lower numbers
What is an alkyne in which the triple bond is between carbons 1 and 2?
terminal alkynes