Pure Appl. Chem., 2008, Vol. 80, No. 5, pp. 1187-1194
http://dx.doi.org/10.1351/pac200880051187
Boryllithium: A novel boron nucleophile and its application in the synthesis of borylmetal complexes
Abstract:
The first boryl anion, boryllithium, was synthesized by a reduction of bromoborane precursor using lithium naphthalenide in tetrahydrofuran (THF) solvent at -45 °C. Structural and spectroscopic study revealed an ionic character of B-Li bond. Boryllithium could be utilized as a source of boryl ligand in the transition-metal chemistry. Structural and spectroscopic features of the resulting boryl complexes confirmed the large trans influence of boryl ligand.