G. Veneziani et al., THERMAL AND METAL-CATALYZED REARRANGEMENTS OF BIS(STANNYL)DIAZO DERIVATIVES INTO CARBODIIMIDES - CARBODIIMIDE-TRANSFER REACTIONS, Organometallics, 12(11), 1993, pp. 4289-4290
Thermolysis of bis(trimethylstannyl)diazomethane (1) or bis(tributylst
annyl)diazomethane (2) affords the corresponding bis(stannyl)carbodiim
ides 3-4. Bis(trimethylstannyl)carbodiimide (3) is also obtained at ro
om temperature by palladium-catalyzed isomerization of diazo derivativ
e 1 and is a powerful precursor of elaborated carbodiimides.