Photo-promoted mild tandem 6-exo-trig spirocyclization of biaryl ynones with ammonium
thiocyanate has been developed to access thiocyanate-containing spiro [5, 5] trienones with …

A visible-light induced dearomative cascade cyclization of biaryl ynones with diselenides
under photocatalyst and external additive-free conditions has been explored, giving a series …

A visible-light-mediated metal-free thiocyanate radical addition/ipso-cyclization/oxidation
cascade reaction for the synthesis of thiocyanato-containing azaspirotrienediones from N …

Indole-tethered ynones form an intramolecular electron donor–acceptor complex that can
undergo visible-light-induced charge transfer to promote thiyl radical generation from thiols …

A visible-light-induced radical cascade cyclization of 2-isocyanoaryl thioethers for the
synthesis of 2-CF2/CF3-containing benzothiazoles has been developed. Sodium sulfite can …

An efficient transition-metal free tandem cyclization of functionalized alkenes with easily
available thiocyanate salts has been developed under mild conditions. This protocol offers a …

DTBP‐Mediated Cascade Spirocyclization and Dearomatization of Biaryl Ynones: Facile Access
to Spiro[5.5]trienones through C(sp3)−H Bond Functionalization - Zhang - 2021 - European …

A convenient, efficient, and metal-free synthesis of 6-thiocyanatophenanthridines by visible-
light-and air-mediated, eosin Y-catalyzed, sequential radical cyclization and aromatization of …

Ceric ammonium nitrate (CAN)-promoted oxidative ipso-cyclization of unactivated biaryl
ynones with S-centered radicals (SCN/SCF3) to access spiro [5, 5] trienones has been …

The dehydrogenative [4+ 2] annulation is a step-and atom-economical way to construct
benzo-fused six-membered rings which are prevalent in natural products, pharmaceuticals …