Text this: Enantioselective addition-alkylation reactions via bisguanidinium silicate ion pair catalysis

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