|Title||Copper-Catalyzed Oxidative Ring Closure and Carboarylation of 2-Ethynylanilides|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Sinai, Á, Mészáros, Á, Gáti, T, Kudar, V, Palló, A, Novák, Z|
A new copper-catalyzed oxidative ring closure of ethynyl anilides with diaryliodonium salts was developed for the highly modular construction of benzoxazines bearing a fully substituted exo double bond. The oxidative transformation includes an unusual 6-exo-dig cyclization step with the formation of C?O and C?C bonds.