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6th May 2012 @ 16:04
HPLC Chromatogram of (3E)-3-(4-Chlorobenzylidene)-1,3-dihydro-2H-indol-2-one: [data]4172[/data] The two major sharp peaks at 6.396 and 6.788 retention times confirm the presence of two isomers (E and Z)- in this compound, (3E)-3-(4-Chlorobenzylidene)-1,3-dihydro-2H-indol-2-one, while the small peak at 4.212 retention time is due to the presence of impurities. The areas of these two isomers are 23.9136% and 75.5619% which suggest that their percentage yield are 18% and 57% for (E)- and (Z)- isomers respectively since their total percentage yield is 75%.
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HPLC Chromatogram of (3E)-3-(4-Chlorobenzylidene)-1,3-dihydro-2H-indol-2-one