The addition of nitrile oxides to [60]fullerene, leading to isoxazolinofullerenes, can be reversed
using reducing agents such as Mo(CO)6 or DIBALH. Thus, this reaction can be used, in principle,
for protection/deprotection of [60]fullerene or for solubilization purposes. The tether-controlled
tandem addition of nitrile oxides and azomethine ylides provides mainly cis-1 patterns. The
determination of the structure of bisadducts was obtained by NMR spectroscopy with the help of
HMQC, HMBC, and NOEDS techniques. The isoxazoline moiety could be removed using Mo(CO)6
leaving a fulleropyrrolidine derivative
