First α,β-unsaturated mononuclear bisylidene complex of tungsten: synthesis and structure
Abstract
cis-Tetracarbonyl[(1-cyclopentenyl)(N-morpholino)methylidene](2-hydroxyphenyl isocyano)tungsten(0) 5 undergoes intramolecular cyclization by deprotonation and subsequent N-alkylation to give the novel bisylidene complex 6, which is characterized by a single-crystal X-ray structure analysis.