82575-22-2Relevant academic research and scientific papers
Total Syntheses of the Isomeric Aglain Natural Products Foveoglin A and Perviridisin B: Selective Excited-State Intramolecular Proton-Transfer Photocycloaddition
Wang, Wenyu,Clay, Anthony,Krishnan, Retheesh,Lajkiewicz, Neil J.,Brown, Lauren E.,Sivaguru, Jayaraman,Porco, John A.
, p. 14479 - 14482 (2017)
Selective excited-state intramolecular proton-transfer (ESIPT) photocycloaddition of 3-hydroxyflavones with trans, trans-1,4-diphenyl-1,3-butadiene is described. Using this methodology, total syntheses of the natural products (±)-foveoglin A and (±)-perviridisin B were accomplished. Enantioselective ESIPT photocycloaddition using TADDOLs as chiral hydrogen-bonding additives provided access to (+)-foveoglin A. Mechanistic studies have revealed the possibility for a photoinduced electron-transfer (PET) pathway.
A Facile Synthesis of Pentafluorophenyl Olefins via an Arsonium Ylide
Shen, Yanchang,Qiu, Weiming
, p. 65 - 66 (2007/10/02)
The in situ reaction of (pentafluorophenylmethylene)triphenylarsorane, generated from methylenetriphenylarsorane and hexafluorobenzene, with aromatic aldehydes gives good to excellent yields of pentafluorophenyl olefins with high stereoselectivity.
