IUPAC Rules for Naming Organic Compounds

I. Alkyl Groups

A. Naming allkyls(parentsuffix)

 

# C Atoms

Structural Formula

Molecular Formula

Name

 

		H
		|
1	H-	C-					-CH3	Methyl
		|
		H

 

		H	H
		|	|
2	H-	C-	C-				-CH2CH3	Ethyl
		|	|
		H	H

 

		H	H	H
		|	|	|
3	H-	C-	C-	C-			-CH2CH2CH3	Propyl
		|	|	|
		H	H	H

 

				H
				|
		H	H	-C-	H				CH3
		|		|					|
3	H-	C-		C-				-CHCH3			Isopropyl
		|		|
		H		H				(a structural isomer)

 

		H	H	H	H
		|	|	|	|
4	H-	C-	C-	C-	C-		-CH2CH2CH2CH3	Butyl
		|	|	|	|
		H	H	H	H

 

		H	H	H	H
		|	|	|	|
4	H-	C-	C-	C-	C-	H	CH3CH2CHCH3			Sec-Butyl
		|	|	|	|			|
		H	H		H
							(structural isomer of butyl)

 

			H
			|
		H	HCH	H				CH3
		|	|	|				|
4	H-	C-	C-	C-			CH3CHCH2-			Isobutyl
		|	|	|
		H	H	H

 

			H
			|
		H	H-C-	H			CH3
		|	|				|
4	H-	C-	C-			CH3	C-			Tert-butyl
		|	|				|
		H	HCH				CH3
			|
			H			(structural isomer of isobutyl)