The preparation of a number of tripodal amines from aminoalkylation of 1,3-
benzoxazines by phenols is presented. A series of ligands prepared in this
manner were successfully coordinated to boron, giving dioxazaborocines. X-r
ay crystal structures of two analogues are reported. These compounds are ca
pable of releasing berate ions and are therefore potentially biologically a
ctive. (C) 1999 Elsevier Science S.A. All rights reserved.