771-98-2Relevant articles and documents
Matuszak,C.A.,Dickson,L.
, p. 3345 - 3346 (1972)
A new palladium-catalyzed phenyl-alkene bond formation
Schmor, Brad,Roy, Rene
, p. 433 - 436 (2002)
A new method of palladium-catalyzed phenyl-alkene bond formation is reported. This reaction involves transfer of all three phenyl groups from triphenylantimony onto alkenes containing allylic protons.
Ring Contraction of Tropylium Ions into Benzenoid Derivatives
Crocker, Reece D.,Dinh, An H.,Lyons, Demelza J. M.,Mai, Binh Khanh,Nguyen, Thanh Vinh,Ton, Nhan N. H.
supporting information, p. 2520 - 2525 (2022/04/12)
We report a method to convert substituted tropylium ions into benzenoid derivatives.
Electro-mediated PhotoRedox Catalysis for Selective C(sp3)–O Cleavages of Phosphinated Alcohols to Carbanions
Barham, Joshua P.,K?nig, Burkhard,Karl, Tobias A.,Reiter, Sebastian,Tian, Xianhai,Yakubov, Shahboz,de Vivie-Riedle, Regina
supporting information, p. 20817 - 20825 (2021/08/18)
We report a novel example of electro-mediated photoredox catalysis (e-PRC) in the reductive cleavage of C(sp3)?O bonds of phosphinated alcohols to alkyl carbanions. As well as deoxygenations, olefinations are reported which are E-selective and can be made Z-selective in a tandem reduction/photosensitization process where both steps are photoelectrochemically promoted. Spectroscopy, computation, and catalyst structural variations reveal that our new naphthalene monoimide-type catalyst allows for an intimate dispersive precomplexation of its radical anion form with the phosphinate substrate, facilitating a reactivity-determining C(sp3)?O cleavage. Surprisingly and in contrast to previously reported photoexcited radical anion chemistries, our conditions tolerate aryl chlorides/bromides and do not give rise to Birch-type reductions.
Lewis-Acid-Catalyzed Tandem Cyclization by Ring Expansion of Tertiary Cycloalkanols with Propargyl Alcohols
Kong, Xiangtao,Li, Xue-Song,Li, Yuke,Liang, Yong-Min,Liu, Hong-Chao,Niu, Zhi-Jie,Wang, Cui-Tian,Wei, Wan-Xu,Zhang, Zhe
supporting information, p. 9457 - 9462 (2021/12/14)
A new method for the efficient synthesis of hexahydro-1H-fluorene and octahydrobenzo[a]azulene derivatives through a ring-expansion strategy is reported. With an appropriate combination of thulium(III) trifluoromethanesulfonate and 13X molecular sieves, a range of unsaturated polycyclic compounds were obtained in good yields. Mechanism studies reveal that the reaction is more likely to undergo Meyer–Schuster rearrangement, ring expansion, and Friedel–Crafts-type pathways, which provide a conceptually different strategy for the ring opening of tertiary cycloalkanols.