Ketones with Common names IUPAC retains well-used but unsystematic names for a few ketones 0 CHCCH. CHe cotone Acetophenone Benzophenone ②2004 Thomson/Brooks Cole
Ketones with Common Names • IUPAC retains well-used but unsystematic names for a few ketones
Ketones and aldehydes as substituents Ther-c=o as a substituent is an acyl group is used with the suffix -yl from the root of the carboxylic acid CH,CO: acetyl: CHO: formyl CkH CO: benzoyl The prefix oxo-is used if other functional groups are present and the aou ably bonded oxygen is labeled as a substituent on a parent chain
Ketones and Aldehydes as Substituents: • The R–C=O as a substituent is an acyl group is used with the suffix -yl from the root of the carboxylic acid –CH3CO: acetyl; CHO: formyl; C6H5CO: benzoyl • The prefix oxo- is used if other functional groups are present and the doubly bonded oxygen is labeled as a substituent on a parent chain
R HC H An acyl group ce FO ormy Benzoyl @2004 Thomson /Brooks Cole 00 CH3CHoCHOCCH,COCH Methyl 3-oxohexanoate 32-1
9. 4 Synthesis of .327 Aldehydes and Ketones Oxidize primary alcohols using pyridinium chlorochromate Oxidize a 2 alcohol many reagents possible: choose for the specific situation( scale, cost, and acid/ base sensitivity)
9.4 Synthesis of Aldehydes and Ketones • Oxidize primary alcohols using pyridinium chlorochromate • Oxidize a 2° alcohol . Many reagents possible: choose for the specific situation (scale, cost, and acid/base sensitivity) p. 327
CH OH PCC CHO CH2Cl2 Citronellol Citronellal(82%0) @2004 Thomson/Brooks Cole PCC (CH3)BC OH choCl (CHg)BC 0 4-tert- Butylcyclohexanol 4-tert- Butylcyclohexanone(90%) 9 2004 Thomson /Brooks cole