10 - continuous chain (the parent chain). Identify the...

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CH 310M/318M – Lecture 10 – W 2/10/2010 Reading Assignment : Section 2.5A Graded Homework : HW#04 deadline = 5:00 p.m. TODAY!!! HW#05 deadline = 9:00 a.m. on Fri 2/12 HW#06 will be available later today (due by 5:00 p.m. on Tu 2/16) Textbook Problems : 2.3, 2.26a-d, 2.27a-f, 2.28a-f Last Time : Line-angle structures (continued…) Degree of substitution Constitutional isomers revisited Today : Drawing constitutional isomers Nomenclature of acyclic alkanes Due to a panel discussion that the Dean has asked me to participate in, Dr. Bocknack will have office hours from 1:30-3p instead of from 10a-11:30a, on Monday, February 15 .
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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
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Unformatted text preview: 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 chain is the one that contains more branches. 4) Number the parent chain from one end to the other in the direction that gives the lower possible number to the first branch. If there is more than one substituent, the alternative numbering schemes are compared number by number. The scheme which gives the lower number at the first point of difference is correct. 5) Name each substituent group, and identify the number of the parent chain C atom to which it is attached....
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10 - continuous chain (the parent chain). Identify the...

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