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

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Text this: Carbene-catalyzed reaction of indolyl methylenemalononitriles and enals for access to complex tetrahydrocarbazoles