Imino sulfinamidines: synthesis and coordination chemistry of a novel class of chiral bidentate ligands.
The new imino sulfinamidine ligand PhS(NHt-Bu)=NC(Me)=N(C6H3-2,6-iPr2), LH (11) was synthesized from N-(2,6-diisopropylphenyl)acetamidine (9) and N-tert-butyl phenylsulfinimidoyl chloride (10). Reaction of LH (11) with ZnEt2 or AlMe3 gave the complexes LZnEt (12) and LAlMe2 (13), respectively. The structures of 12 and 13 were determined by X-ray diffraction and were shown to contain L as a kappa2-N1,N5 bidentate ligand in a six-membered chelate. Formation of the magnesium complex (LMgN(TMS)2 x L2Mg) (14) from 11, MgI2, and KN(SiMe3)2 highlighted a secondary coordination mode of L, binding through the sulfinamidine nitrogens in a four-membered chelate.
Barrett
Anthony G M
AG
Department of Chemistry, Imperial College London, London, SW7 2AZ, England. agmb@ic.ac.uk
Gray
Andrew A
AA
Hill
Michael S
MS
Hitchcock
Peter B
PB
Procopiou
Panayiotis A
PA
White
Andrew J P
AJ
D002384:Catalysis; D007097:Imines / Q000138:chemical synthesis* / Q000737:chemistry; D008024:Ligands; D013237:Stereoisomerism; D013457:Sulfur Compounds / Q000138:chemical synthesis* / Q000737:chemistry
D007097:Imines; D008024:Ligands; D013457:Sulfur Compounds