Abstract:Functionalized alkyl 2‐benzylacrylates and 2‐benzylacrylonitriles were synthesized by means of atom‐economic cross‐couplings of Baylis–Hillman bromides or acetates with BiAr3 under palladium‐catalyzed conditions. These reactions, involving threefold aryl couplings using BiAr3 reagents with bromides and acetates, are fast and are completed in 1–2 h with high product yields.
“…Purification by column chromatography (eluant: pentane/diethyl ether 9:1) afforded 20 mg of 7m (colorless oil, 39% yield). The spectroscopic data of 7m were in accordance with the literature …”
The metal- and photocatalyst-free synthesis of substituted allylarenes has been carried out under visible light driven conditions. The process was based on the photogeneration of aryl radicals from arylazo sulfones and their ensuing reaction with allyl sulfones. The developed procedure was very efficient when using substrates bearing electron-withdrawing groups, and allowed for the preparation of α-benzyl styrenes and 2-benzyl acrylates in good yields.
“…Purification by column chromatography (eluant: pentane/diethyl ether 9:1) afforded 20 mg of 7m (colorless oil, 39% yield). The spectroscopic data of 7m were in accordance with the literature …”
The metal- and photocatalyst-free synthesis of substituted allylarenes has been carried out under visible light driven conditions. The process was based on the photogeneration of aryl radicals from arylazo sulfones and their ensuing reaction with allyl sulfones. The developed procedure was very efficient when using substrates bearing electron-withdrawing groups, and allowed for the preparation of α-benzyl styrenes and 2-benzyl acrylates in good yields.
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