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CHEM 2211 -
Beginning of CH.7--Alkynes
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CHEM 2211 1st Edition Lecture 20 Outline of Last LectureI. Summary of reaction mechanismsOutline of Current LectureI. Alkyne introductionII. NamingCurrent LectureI. Alkyne introductionA. Means there are triple bonds presentB. Less reactive than double bondsC. sp hybridized carbonsD. Have 180° geometry when drawnRed dots represent the carbons. This molecule has 6 carbons.II. NamingA. Same as alkanesB. Identify the parent chain (must include triple bond)i. Drop the –ane ending and add –yne5-methyl-3-heptyneC. If both a triple and double bond are present on the molecule, the parent chain is the longest carbon chain that includes both i. Ending is –enyne
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