COMMON FUNCTIONAL GROUPS ype of Compound General Structure Example Functional Group Type of Compound General Structure Example Functional Grour chiode Aromatic compound phenyl group R-OH nadoggoep cate eabS9op CH°ScH -COOR R-H CHaCHa R--R CHa-Q-CHa ao X Keton eat9rog .:D halo oup tril R-CaN CHa-CxN: gnSvop -CC- H-C=C-H R--R CHa--CH 8 R-别 Amine 品 am -COSR Anhydride ga具具 Acid chloride Alcohol R Cl O C CH3 NH2 O R N C H (or R) O C H (or R) HR O C 3 HCH O C –COCl Amide Anhydride –CONH2, –CONHR, –CONR2 –OH hydroxy group Carboxylic acid –COOH carboxy group –OR alkoxy group 3 ClCH O C Type of Compound General Structure Example Functional Group Type of Compound General Structure Example Functional Group R OH CH3 OH Alkane R H CH – – 3CH3 Ether Alkyl halide Alkene double bond Aromatic compound phenyl group Aldehyde carbonyl group C O carbonyl group C O cyano group –C N C C H H H H C C Alkyne C C CH C H triple bond Nitrile Amine –NH2 amino group (X = F, Cl, Br, I) R X –X halo group CH3 Br NH2 R or R2NH or R3N CH3 NH2 R R O C O C O O C O C CH3 CH3 O O C O C O OHR O C R R O CH3 O CH3 –SR alkylthio group Sulfide R R S CH3 O C OH Ester –COSR –COOR ORR O C CH3 O C OCH3 RR O Ketone C CH3 O C CH3 Thioester CR N CH3 S CH3 –SH mercapto group Thiol R SH R O C SR CH3 O C SCH3 CH3 SH 3 CCH N COMMON FUNCTIONAL GROUPS smi75625_endppFRONT.indd 3 12/2/09 10:14:16 AM