(c)The longest continuous chain is shown in the structure; it contains ten carbon atoms. Thestructure also shows the numbering scheme that gives the lowest number to the substituent atthe frst point of difference.In alphabetical order, the substituents are ethyl (at C-8), isopropyl at (C-4), and two methylgroups (at C-2 and C-6). The alkane is 8-ethyl-4-isopropyl-2,6-dimethyldecane. The system-atic name for the isopropyl group (1-methylethyl) may also be used, and the name becomes8-ethyl-2,6-dimethyl-4-(1-methylethyl)decane.2.10(b)There are ten carbon atoms in the ring in this cycloalkane, thus it is named as a derivative ofcyclodecane.The numbering pattern of the ring is chosen so as to give the lowest number to the substituentat thefrst point of difference between them. Thus, the carbon bearing two methyl groups isC-1, and the ring is numbered counterclockwise, placing the isopropyl group on C-4(numbering clockwise would place the isopropyl on C-8). Listing the substituent groups in al-phabetical order, the correct name is 4-isopropyl-1,1-dimethylcyclodecane. Alternatively, the
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This note was uploaded on 09/20/2011 for the course CHM 2210 taught by Professor Reynolds during the Fall '01 term at University of Florida.