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[VO{N-(2-oxido-1-naphthylmethylene)-L-ala}OBus(HOBus)]: characterization of a complex containing four centres of chirality

1995; Royal Society of Chemistry; Issue: 14 Linguagem: Inglês

10.1039/c39950001443

2050-5639

Russell Fulwood, Hauke Schmidt, Dieter Rehder,

Molecular spectroscopy and chirality

Reaction of vanadyl sulfate, L-alanine and 2-hydroxynaphthaldehyde with subsequent aeration in D,L-sec-butyl alcohol leads to the Schiff base VV complex [VO{N-(2-oxido-1-naphthylmethylene)-L-ala}OBus(HOBus)] which, in solution, exists in at least three diastereoisomers (51V NMR evidence), and crystallizes with the ASRR and CSSS isomers in the same asymmetric unit.