Symmetrical and asymmetrical bis(amine)carboxyhydroboron(+1) and bis(amine)cyanohydroboron(+1) cations: synthesis and properties
作者:József Emri、Zoltán Kovács、Béla Győri
DOI:10.1016/0020-1693(95)04453-g
日期:1995.5
DMAP). The bis(amine)boronium cations have been prepared and characterized by IR, 1 H and 11 B NMR spectra as PF 6 salts. Investigations of the water-soluble bis(amine)(methoxycarbonyl)hydroboron(+1) bromides, some of which could be prepared, showed that the hydrolytic stability of the ester group highly depends on the character of the amine: the complexes formed with tertiary amines are much more
Abstract Carboxy- O -methyl, carboxylic and carboxylate groups containing bis(amine)hydroboron(1+) cations, including the boron analogue of tetramethyl-proline, have been synthesized and characterized. The latter is the first representative of those boron compounds which are truly isosteric to the α-amino acids.