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Unformatted text preview: 7 - 4 continued (c) C 4H402 => C4H4
HC = 3 ° C - C - OCH3
= II (d) C s H s N0 2 [r
° => C s sH s C 4 0 , + ,.... 0 ' ° C - N H, ( e) C 6H3NClBr
HC => C6 sHS = 5 o
Br CH N N C U
Br O C-N C - C == C - C I I B r NH Cl I Cl )U N == C == CH2 A Cl Note to the student: The IUP AC system of nomenclature is undergoing many changes, most notably i n the placement of position numbers. The new system places the position number close to the functional group designation, which is what this Solutions Manual will attempt to follow ; however, you should be able to use and recognize names in either the old or the new style. Ask your instructor which system to use.
7-5 (a) (b) (c) (d) (e) (a) 4-methylpent- l -ene 2-ethylhex- l -ene penta- l ,4-diene penta- l ,2,4-triene 2,5-di methy\cyclopenta- l ,3 -diene (i) 7-methy\enecyclohepta- l ,3 , 5-triene ( f) 4 -vinylcyclohex- l -ene (" 1 " i s optional) (g) 3-phenylprop- l -ene (" 1 " i s optional) (h) trans-3 ,4-dimethy\cyclopent- l -ene (" 1 " is o ptional) 7 -6 ( b), (e), and (f) do not show cis, trans isomerism �
(Z)-hex-3-ene (cis-hex -3 -ene) (E)-hCX -enc ( trans-hex-3-ene) ( c) � \ ( 2Z,4Z)-hexa-2,4-diene cis, cis-hexa-2,4-diene (d) \d\ (2Z,4E)-hexa-2,4-diene cis, trans-hexa-2,4-diene ( 2E,4E)-hexa-2,4-diene trans, trans-hexa-2,4-diene
" E' a nd Z are unambiguous.
" ' ( Z)-3-methylpent-2-ene ;=C " Cis" and "trans" are not clear for this e xample; (E)-3-methylpent-2-ene
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- Spring '10