sulfonediimines

Compounds having the structure, RS(=NR)2R, formally derived from sulfones by replacing (=O)2 by (=NR)2, e.g. Ph2S(=NH)2 diphenyl sulfonediimine.
Source:
PAC, 1995, 67, 1307 (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1369