2.1.4 Nomenclature CH3CH2CHCH2CH3 none 3-methylpentane CH CH3CH-CHCH3 none 2, 3-dimethylbutane CHCH ■ Alkyl Group R-( (replacing“ ane with yl primary, secondary, tertiary, quaternary C, but only primary, secondary, tertiary H see our text2.1.4 Nomenclature ◼ CH3CH2CHCH2CH3 none 3-methylpentane ◼ CH3 ◼ CH3CH-CHCH3 none 2,3-dimethylbutane ◼ CH3 CH3 ◼ Alkyl Group R- (replacing “ane” with “yl”) ◼ primary, secondary, tertiary, quaternary C, but only primary, secondary, tertiary H ◼ ( see our text )