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The Reaction of Ninhydrin with Trimethylbenzenes under Friedel-Crafts Reaction Conditions
Authors:Hyun Nam Song  Hong Jung Lee  Mi Ra Seong  Keum Shin Jung  Jae Nyoung Kim
Affiliation:1. Department of Chemistry , Chonnam National University , Kwangju, 500-757, Korea;2. Central Research Institute, Hanmi Pharmaceutical Co. Ltd. , 371, Sampyoung-dong, Sungnam, Kyonggi-Do, 463-400, Korea
Abstract:The reaction of ninhydrin with 1,2,3- and 1,2,4-trimethylbenzene in the presence of H2SO4 or AlCl3 afforded 2-monoaryl and 2,2-diaryl-1,3-indanedione derivatives as the major products. With 1,3,5-trimethylbenzene as the arene nucleophile, either a reduction product or an indenoindanone derivative was obtained depending upon the catalyst employed in the reaction.
Keywords:Octyl glucopyranoside  2‐Pyridyl‐1‐thioglucopyranoside  Iodomethane  Regioselective glycosylation
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