Synthesis of 3-[p-(1′-pyrazolyl)]phenylsydnones

The synthesis of some hitherto unknown sydnones, i.e., derivatives of 3-phenylsydnone with a pyrazolyl moiety in the p-position of the phenyl nucleus, has been described. The structures for all of the sydnones have been confirmed by elemental analysis, and ir and nmr spectral studies.