Synthesis of Dialkylscandium Complexes Supported by β-Diketiminato Ligands and Activation with Tris(pentafluorophenyl)borane
Organometallics1999Vol. 18(16), pp. 2947–2949
Citations Over TimeTop 1% of 1999 papers
Abstract
Treatment of ScCl3·THF3 with the lithium salts of the ligands ArNC(R)CHC(R)NAr, where Ar = 2,6-Pri-C6H3 and R = CH3 and But, gives LScCl2·nTHF derivatives (R = CH3, n = 1, 1a; R = But, n = 0, 1b). These compounds can be derivatized by alkylation with methyllithium or benzylpotassium. The dibenzyl compound prepared from 1a, when treated with B(C6F5)3, gives an ion pair, 4, in which the cationic scandium center is stabilized by a η6-aryl interaction with the abstracted borate benzyl group.
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