Synthesis of the First Silaamidide

A 1,3‐diaza‐2‐silaallyl anion characterizes the salts 2 and 3, in which the Li⊕ counterion is either coordinated to Et2O or remains in a free state. Compound 2 was prepared from the silanediamine 1 by straightforward metalation, and then isolated as a colorless solid. Attempts at X‐ray structure analysis were unsuccessful, but the structure was nonetheless firmly established through a series of chemical transformations.