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  ______     ___      _  _     _____     ____    
 /_   _//   / _ \\   | \| ||  |  ___||  |  _ \\  
   | ||    | / \ ||  |  ' ||  | ||__    | |_| || 
  _| ||    | \_/ ||  | .  ||  | ||__    | .  //  
 /__//      \___//   |_|\_||  |_____||  |_|\_\\  
 `--`       `---`    `-` -`   `-----`   `-` --`

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Text this: Synthesis of gem-difluoromethylenated spiro-γ-butyrolactones by employing PhSCF<inf>2</inf>Si(CH<inf>3</inf>)<inf>3</inf>as a gem-difluoromethylenating agent