Large-scale synthesis and resolution of TRISPHAT [tris(tetrachlorobenzenediolato) phosphate(V)] anion.
Both enantiomers of TRISPHAT anion can be obtained on a multigram scale through a novel resolution procedure. The Lambda enantiomer is isolated as the tri-n-butylammonium salt, [(n)()Bu(3)NH][Lambda-1], which is soluble in pure CHCl(3) and CH(2)Cl(2). The Delta enantiomer is prepared as the cinchonidinium derivative, which is only soluble in polar solvent mixtures (>7.5% DMSO in CHCl(3)).
Favarger
France
F
Département de Chimie Organique, Université de Genève, quai Ernest-Ansermet 30, CH-1211 Genève 4, Switzerland.
Goujon-Ginglinger
Catherine
C
Monchaud
David
D
Lacour
Jérôme
J