ZnBr2-Mediated oxidative spiro-bromocyclization of N-arylpropiolamide has been described
herein for the synthesis of 3-bromo-1-azaspiro [4.5] deca-3, 6, 9-triene-2, 8-dione with high …

A metal-and oxidant-free route for affording azaspiro [4.5] deca-6, 9-diene-3, 8-dione via
photomediated iodinated spirocyclization of N-(4-methoxybenzyl) propiolamide has been …

A facile protocol for the tunable synthesis of 10-hydroxy-1-azaspiro [4.5] deca-3, 6, 8-trien-2-
ones and benzo [b] pyrrolo [2, 1-c][1, 4] oxazin-3-ones is described. A tunable synthesis has …

The selective and controllable construction of spio-tricyclic skeletons through visible light
promoted radical cyclization still remains challenging. Herein, a general and convenient …

An efficient and divergent one‐pot synthesis of substituted 2H‐pyrans, 4H‐pyrans and
pyridin‐2 (1H)‐ones from β‐oxo amides based on the selection of the reaction conditions is …

Treating the benzyl protected 3‐hydroxy‐1, 3‐bis (2‐hydroxyphenyl) prop‐2‐en‐1‐ones
solely with PhI (OAc) 2 (PIDA) in DCE at room temperature readily furnished the seldom …

Alkyne-based regioselective functionalization is an important transformation method for the
synthesis of a wide variety of organic products. In this work, a regioselective TBAI-mediated …

The controllable synthesis of spirooxindole–dihydrofurans and spirooxindole–benzazepines
was developed through formal [3+ 2] and [5+ 2] cyclization reactions from 2-(2-oxoindolin-3 …

In this work, we described a new synthetic route of 3-bromo-1, 2-dihydroquinoline
derivatives based on the TBAB/Oxone-mediated radical 6-endo-trig ortho-cyclization of 2 …

A TBAB‐mediated radical 5‐exo‐trig ipso‐cyclization of N‐aryl‐2‐arylbenzamide is
described herein for the synthesis of spiro [cyclohexane‐1, 1′‐isoindoline]‐2, 5‐diene‐3 …