Question

Nomenclature below are some important benzene derivatives that you need to learn: N02 oMe NH2 toluene nitrobentenc anisole aniline phene! CEN Styrene benzaldehyde benzoic ac d bentonitrile áive the IUPAC name for each of the following compound s a) он 5 CH 92 COND CHCH c) Br NH2 d) OH

Answer 1

он There is one sec-butyl substituents at 2 position nitro substituent at 5 position of the phcnol. Substitucnts are arranged in an alphabetical order Hencc 2-(sec-butyl)-5-nitrophenol There is a isobutyl substituent attached to benzene. Hence, the TUPAC name İsobutvl benzene IUPAC lHIIc There is one iso-butyl substituents at 1 position, methyl substituent at 2 position of the benzene Substituents are arranged in an alphabetical order lence 1-isobutyl-2-methylbenzene There are two chloro substiuent altached b) to the 1 and 2 positions of benzene. Hence, the IUPAC name 1.2-dichlorobenzcenc the IUPAC Cl он There is one fert-butyl substituents at 2 position, nitro substituent at 4 position of the benzene Substituents are arranged in an alphabetical order Hence 2-(tert-butyl)-4-nitrophenol h) There is a bromo substituent attached to 3 position of aniline. Hence, the IUPAC name: 3-bromoaniline IUPAC NH2 There are two ethyl substitucnts aa 2 positions of benzene and chloro substituents a 4 position of benzenc. Substituents are arranged in an alphabetical order. Hence, thc IUPAC name: 4-chloro-1,2-diethylbenzende CI c) There is onc tert-butyl substitucnts at 1 position, ethyl substituent at 2 position and a methyl subsititent at 3 position of benzene Substiucnts arc arranged in an alphabctical order Hence, the IUPAC namc 1-(tert-butyl)-2-cthyl-3-methylbenzene