Azolylborane adducts. Structural and conformational analysis by x‐ray diffraction and NMR. Protic‐hydric (CH
<sup>δ+</sup>
‐
<sup>δ–</sup>
HB) and Protic‐Fluoride (CH
<sup>δ+</sup>
‐
<sup>δ–</sup>
FB) interactions
作者:Itzia Irene Padilla‐Martińez、Maria De Jesús Rosalez‐Hoz、Hugo Tlahuext、Carlos Camacho‐Camacho、Armando Ariza‐Castolo、Rosalinda Contreras
DOI:10.1002/cber.19961290413
日期:1996.4
The preparation, NMR and X-ray diffraction studies of a series of azolylboron hydrides derived from pyrrole, indole, and carbazole coordinated with tetrahydrofuran, pyridine, and imidazole are reported. The azolyl substituents are very electroattractive leading to an acidic boron atom which strongly coordinates with the Lewis bases. The stabilization of the BH2groups against disproportionation could