أرسل هذا في رسالة قصيرة: Vicinal dianions of diethyl α-aroylsuccinates: Preparation of functionalized-2,3-dihydrofurans and -furans, and diaxial 2,4-diaryl-3,7-dioxabicyclo[3.3.0]octanes

  ____     _    _     _  _      ___      ____    
 |  _ \\  | || | ||  | \| ||   / _ \\   |  _ \\  
 | |_| || | || | ||  |  ' ||  | / \ ||  | |_| || 
 | .  //  | \\_/ ||  | .  ||  | \_/ ||  | .  //  
 |_|\_\\   \____//   |_|\_||   \___//   |_|\_\\  
 `-` --`    `---`    `-` -`    `---`    `-` --`