CH CH CH CH OH CH3-N CH3C—NH CH CH CH 3 tert-Butyl alcohol Trimethylamine tert-Butylamine (a tertiary alcohol)(a tertiary amine)(a primary amine e In secondary and tertiary amines the alkyl groups may be the same or different (CH3 CH22NH CH3 CH2NHCH3 CH 3 CH CH
Organic Chemistry Organic Chemistry Xiamen Xiamen University University CH 3 C CH 3 CH 3 OH CH 3 C CH 3 CH 3 CH 3 N NH 2 CH 3 CH 3 tert-Butyl alcohol Trimethylamine tert-Butylamine (a tertiary alcohol) (a tertiary amine) (a p rimary amine) In secondary and tertiary amines, the alkyl groups may be the same or different. (C H 3CH 2 ) 2NH CH 3CH 2NHCH 3 N CH 3 N CH 3 CH 3
3 Compounds with four groups attached to nitrogen are also known, but the nitrogen atom must carry a positive Er charge. Such compounds are called quaternary ammonium salts R + R一N-RX 季铵 R A quaternary ammonium salt
Organic Chemistry Organic Chemistry Xiamen Xiamen University University Compounds with four groups attached to nitrogen are also known, but the nitrogen atom must carry a positive charge. Such compounds are called quaternary ammonium salts. R N R R R X A q uaternary am m onium salt 季铵盐
Nomenclature of Amines Primary amines are named in the IUPAC system in several ways depending on their structure. For simple amines, the suffix -amine is added to the name of the alkyl substituent. g Alternatively the suffix -amine can be used in place of the final -e in the name of the parent compound
Organic Chemistry Organic Chemistry Xiamen Xiamen University University Nomenclature of Amines Primary amines are named in the IUPAC system in several ways depending on their structure. For simple amines, the suffix -amine is added to the name of the alkyl substituent. Alternatively, the suffix –amine can be used in place of the final – e in the name of the parent compound
CH I CH3 -C-NH2 NH 2 CH tert-butylamine Cyclohexylamine CH NH2 己NH -NH2 CH o 1, 4-Butanediamine 4, 4-Dimethylcyclohexanamine
Organic Chemistry Organic Chemistry Xiamen Xiamen University University CH 3 C CH 3 CH 3 NH 2 NH 2 tert-Butylamine C yclo hexylamine NH 2 NH 2 NH 2 CH 3 CH 3 1,4 - B utaned iam i n e 4,4 - D i methylcycl ohex anam ine
An-NH2 group when not the principal group, is named by the prefix amino CO,H HoN- COH NH2 NH2 2-Aminobutanoic acid 2. 6-Diaminobenzoic acid NH 4-Amino-2-butanone
Organic Chemistry Organic Chemistry Xiamen Xiamen University University An -NH 2 group, when not the principal group, is named by the prefix amino-. CO 2 H NH 2 H 2 N CO 2 H O NH 2 2- A m i n o b utanoic acid NH 2 2,6-Di a m i n o b enzo ic acid 4- A m i n o-2-butano n e