11042009 - Nomenclature of Alkynes The parent chain must...

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CH 310M/318M – MWF 12:00 – Lecture 30 – W 11/4/2009 Reading Assignment : Sections 7.7, 7.8 Graded Homework : HW#15 deadline = 3:00 p.m. on Thu 11/5 HW#16 deadline = 3:00 p.m. on Mon 11/9 Textbook Problems : 7.3, 7.8, 7.10, 7.15, 7.26, 7.27 Last Time : Ozonolysis of alkenes Preparation of vicinal diols from alkenes – dihydroxylation Preparation of alkanes from alkenes – catalytic reduction (end Ch. 6) Structure and nomenclature of alkynes (begin Ch. 7) Today : Nomenclature of alkynes (continued…) Preparation of alkynes via dehydrohalogenation of vicinal & geminal dihalides
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The suffix “–yne” is used in naming alkynes
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Unformatted text preview: Nomenclature of Alkynes The parent chain must contain the triple bond. Number the parent chain to give the triple bond the lowest number possible. If both double bonds and triple bonds are present, the parent chain should include the greatest number of double & triple bonds. Number the parent chain to give the first multiple bond encountered the lowest number possible. Double bonds are always cited first in the name. .. If both possible ways of numbering the parent chain are equivalent, double bonds take precedence over triple bonds and should be given lower numbers...
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This note was uploaded on 01/08/2010 for the course CH 53675 taught by Professor Bocknack during the Fall '09 term at University of Texas at Austin.

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11042009 - Nomenclature of Alkynes The parent chain must...

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