alkene_nomenclature_rules

alkene_nomenclature_rules - ! Designate configuration...

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IUPAC Rules for Naming Alkenes I. Use IUPAC Rules for Naming Alkanes as starting point. II. Unbranched and branched chain alkenes ! Identify the longest chain of carbon atoms that contains the double bond . ! Name the longest chain as an alkane, then convert the suffix -ane to -ene . ! Number the longest chain to give the carbon atoms of the double bond the smallest possible numbers. ! Indicate the position of the double bond in the longest chain by using a prefix (i.e., the smaller number of the two carbon atoms of the double bond). Use a hyphen to connect the number to the name. ! Identify, name and number any substituents as is done for alkanes.
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Unformatted text preview: ! Designate configuration (i.e., cis-/ trans-, or ( E )-/( Z )-), if necessary. III. Cycloalkenes ! Number the carbon atoms of the double bond as 1 and 2 in the direction that gives the substituent encountered first the smaller number. ! Continue numbering around the ring. ! Identify, name and number any substituents as is done for (cyclo)alkanes. ! Designate configuration (i.e., cis-/ trans-, or ( E )-/( Z )-) only if the ring size is greater than or equal to eight carbon atoms....
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