Text this

Number:

Provider:

CAPTCHA:

__    __   __   __  __    __   __   __            
\ \\ / //  \ \\/ // \ \\ / //  \ \\/ //   ____    
 \ \/ //    \ ` //   \ \/ //    \ ` //   |    \\  
  \  //      | ||     \  //      | ||    | [] ||  
   \//       |_||      \//       |_||    |  __//  
    `        `-`'       `        `-`'    |_|`-`   
                                         `-`

Please enter what you see:

Text this: Cleavage and reassembly C≡C bonds of ynones to access highly functionalized ketones