702644-80-2

Upstream product

• 623-73-4 diazoacetic acid ethyl ester 
• 99685-96-8 fullerene-C₆₀ 

Downstream Products

• 150493-27-9 ethyl 3′H-cyclopropa[1,9](C₆₀-I_h)[5,6]fullerene-3′-carboxylate 

Relevant academic research and scientific papers

Are the pyrazolines formed from the reaction of [60]fullerene with alkyl diazoacetates unstable?

[60]Fullerene-fused pyrazolines 1 were prepared by the reaction of C 60 with alky diazoacetates under the solid-state high-speed vibration milling conditions as well as in toluene solution. Pyrazolines 1 were stable in refluxing toluene and its thermolysis process in 1,2-dichlorobenzene was investigated, the decomposition rates and activation energies of pyrazolines 1 were obtained. The current work demonstrated that the liquid-phase reaction of C60 with alkyl diazoacetates undergoes via 1,3-dipolar cycloaddition pathway at room temperature, or proceeds via carbene mechanism at a temperature of refluxing toluene, thus clarifies the previous ambiguity of its reaction mechanism.