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 metal/peroxide-free involved simple cascade 6-exo-trig spirocyclization of tert-butyl nitrite
with biaryl ynones has been finished, which resulted in various NO2-modified spiro [5, 5] …

We disclosed a selective polychloromethylation and halogenation reaction of alkynes via a
radical addition/spirocyclization cascade sequence, in which polyhaloalkanes were used as …

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 …

The last decade has witnessed significant progress in the development of novel synthetic
methods for the preparation of a variety of new functionalized and condensed compounds …

An efficient and straightforward synthesis of diversified seleno-azaspiro-2, 5-
cyclohexadienones from N-(4-methoxy aryl) propiolamides using elemental selenium and …

We describe here for the first time the synthesis of 2-(chalcogenyl)-3 H-benzo [f] chromenes
and the new 3-(phenylselanyl)-2 H-chromenes by the radical or electrophilic cyclization of …

A radical selenylative cyclization of trifluoromethyl propargyl imines with diselenides for the
regiodivergent construction of diversely functionalized azaspiro [4, 5]-tetraenones and …

Bromine induced spiro cyclization of biaryl ynones facilitated the synthesis of spiro [5, 5]
trienones suitable for extended functionality at the C (3′) position. Herein, a step-economic …

A new and efficient method for the synthesis of 6-organyl-5-(arylselanyl) benzo [h]
quinolines via visible light-promoted intramolecular ortho-cyclization of 2-aryl-3 …