02112009 - CH 310M/318M MWF 9:00 Lecture 10 W Reading...

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CH 310M/318M – MWF 9:00 – Lecture 10 – W 2/11/2009 Graded Homework : HW#04 deadline = 3:00 p.m. on Thu 2/12 HW#05 deadline = 3:00 p.m. on Mon 2/16 (last graded HW due before Midterm #1) Reading Assignment : Sections 2.4-2.6 Textbook Problems : 2.3, 2.24, 2.26-2.28 Last Time : Degree of substitution Constitutional isomers of alkanes Today : Nomenclature of acyclic alkanes
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Know the names of the unbranched alkanes having 1 through 12 C atoms!!!
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Rules for Naming Alkanes (Be sure to look at the online handout!!!) 1) Unbranched alkanes are named according to the number of C atoms (Table 2.1) 2) In a branched alkane, some of the C atoms are not part of the longest continuous chain (the parent chain). Identify the parent chain. Tip : Start at any end of a chain. Trace along with your finger until you reach another end. Try all possibilities. The path which incorporates the most C atoms without lifting your finger is the parent chain. 3) If two or more chains within a structure have the same length, the parent
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02112009 - CH 310M/318M MWF 9:00 Lecture 10 W Reading...

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