nitrile ylides

also defines: alkylideneamino carbenes
https://doi.org/10.1351/goldbook.N04153
1,3-dipolar compounds having the structure:
molecule
The uncharged canonical form
molecule
is called an alkylidene- (or hydrocarbylidene-) amino carbene; the name iminyl carbene is incorrect because iminyl is not a recognized prefix for $\ce{–N=CR2}$.
See also: carbenes
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1351 [Terms] [Paper]