Andreas Eitzinger,
"Phosphine-Catalyzed [4 + 2] Annulation of Arylidene Azlactones and Allenoates: Synthesis of Highly Functionalized Spirocyclohexenes"
, 2017
Original Titel:
Phosphine-Catalyzed [4 + 2] Annulation of Arylidene Azlactones and Allenoates: Synthesis of Highly Functionalized Spirocyclohexenes