Pd/C-mediated synthesis of (Z)-3-alkylidenephthalides of potential pharmacological interest
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Add time:08/23/2019 Source:sciencedirect.com
The coupling of o-bromobenzoic acid with terminal alkynes using 10% Pd/C–Et3N–CuI–PPh3 as a catalyst system leads to the synthesis of (Z)-3-alkylidenephthalides as the major product along with the traces of isocoumarin when the reaction was performed in 1,4-dioxane. The methodology afforded a range of compounds including (Z)-3-(4-(methylsulfonyl)benzylidene)isobenzofuran-1(3H)-one of potential pharmacological interest.
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