Patent ID: 6143264
Filing Date: 2000-11-07
Classification: C07F

Abstract:
A process for the preparation of undecahydrododecaborate anions [B.sub.12 H.sub.(12-n) (XCN).sub.n ].sup.2- or [B.sub.12 H.sub.11 XH].sup.2- or nonahydrodecaborate anions [B.sub.10 H.sub.(10-n) (XCN).sub.n ].sup.2- or [B.sub.10 H.sub.9 XH].sup.2- where X=O, S or Se; and n=1, 2 or 3; said process comprising reacting, under chemical oxidizing conditions, a dodecahydrododecaborate anion [B.sub.12 H.sub.12 ].sup.2- or decahydro decaborate anion [B.sub.10 H.sub.10 ].sup.2- with a compound A.sup.+ NCX.sup.-where A.sup.+ =an alkali metal cation selected from Li.sup.+, Na.sup.+, K.sup.+ or Cs.sup.+ ;an alkaline earth metal cation selected from 1/2Ca.sup.+, 1/2Mg.sup.+ ;[R.sub.4 P].sup.+, [R.sub.3 HP].sup.+, [R.sub.4 N].sup.+, [R.sub.3 HN].sup.+ ;where R is a C.sub.1-20 alkyl, aryl, or C.sub.1-20 alkyl substituted aryl group.