Text this: Iterative addition of carbon nucleophiles toN,N-dialkyl carboxamides for synthesis of α-tertiary amines

           _    _     _____      ___     _    _   
  ____    | || | ||  |__  //    / _ \\  | || | || 
 |    \\  | || | ||    / //    | / \ || | || | || 
 | [] ||  | \\_/ ||   / //__   | \_/ || | \\_/ || 
 |  __//   \____//   /_____||   \___//   \____//  
 |_|`-`     `---`    `-----`    `---`     `---`   
 `-`