thumb|right|100px|General structure of a ketenimine
thumb|right|100px|General structure of a ketenimine
Ketenimines are a group of organic compounds with the general structure . A ketenimine is a cumulated alkene and imine and is related to an allene and a ketene. When the substituents on the terminal carbon differ, the ketenimines are intrinsically chiral owing to the non-linearity of the C=N-R group.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).