NMR Spectra of Pyrazole Derivatives of Boron

Abstract

Abstract NMR spectral data on some pyrazole derivatives of boron are presented. In particular, definite assignments of the 1 H and 13 C NMR spectra of B‐(pyrazol‐1′‐yl)pyrazaboles are made utilizing two‐dimensional NMR techniques. 11 B NMR spectra of a variety of B‐ and C‐substituted pyrazaboles are accumulated and the first 15 N NMR data on such species are reported.