AN INTRODUCTION TO ORGANIC COMPOUNDS Notes

Diethyl ether ch 3 ch 2 och 2 ch 3 ethyl methyl ether

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diethyl ether: CH 3 CH 2 OCH 2 CH 3 ethyl methyl ether: CH 3 OCH 2 CH 3 IUPAC nomenclature : RO- are alkoxy groups groups (replace the "yl" ending of an alkyl group with "oxy"). Nomenclature of alcohols Common names : give the name of the alkyl group to which the OH is attached followed by the word alcohol . ethyl alcohol: CH 3 CH 2 OH (ethanol) IUPAC nomenclature :
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24 1. Select the longest contiguous carbon chain to which the OH group is directly attached. Change the name of the alkane by replacing the "e" ending with "ol". 2. Number the longest contiguous carbon chain so as to give the carbon atom bearing the OH group the lower number . Give substituents (in alphabetic order) the lowest possible numbers. Nomenclature of amines Common names : cite the alkyl groups in alphabetical order followed by the word amine . ethylamine: CH 3 CH 2 NH 2 ethylmethylamine: CH 3 CH 2 NHCH 3 trimethylamine: (CH 3 ) 3 N IUPAC nomenclature : 1. Use "amine" as a suffix (similar to "ol" for alcohols) 2. Use a number to indicate position of amino group 3. Use N (italics) to indicate the group bonded to nitrogen rather than carbon 4. List substituents in alphabetical order.
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