C1(C)C=CC=CC=1.ClC1C(=O)C(C#N)=C(C#N)C(=O)C=1Cl.[F:22][S:23]([CH:28]1[C:37]2[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=2)[CH2:31][CH:30]=[CH:29]1)([F:27])([F:26])([F:25])[F:24]>CCCCC>[F:22][S:23]([C:28]1[C:37]2[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=2)[CH:31]=[CH:30][CH:29]=1)([F:27])([F:26])([F:25])[F:24]Toluene and dichlorodicyanobenzoquinone (2 equivalents) were added to the product of step 2 and heated to 65° C. The reaction was monitored by GC. When the reaction was complete pentane was added. Resulting solids were removed by filtration. Color was removed by filtering through silica. The crude product was isolated by removing the solvent using rotary evaporation.
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