Aminocarbyne coupling reactions leading to the bis(amino)acetylene complexes trans-[MF(η2-MeHNCCNHMe)-(Ph2PCH2CH2PPh2
作者： João J.R.Fraústo da Silva , Maria Angela Pellinghelli , Armando J.L. Pombeiro , Raymond L. Richards , António Tiripicchio
DOI: 10.1016/0022-328X(93)83255-T
关键词: Acetylene compounds 、 Stereochemistry 、 Coupling reaction 、 Isocyanide ligands 、 Chemistry 、 Molecule 、 Acetylene
摘要: Abstract Reactions of [Et 2 OH][BF 4 ] with the aminocarbyne complexes trans -[M(CNHMe)(CNMe)(dppe) ][BF (M Mo or W; dppe = Ph PCH CH PPh ) give corresponding bis(amino)acetylene compounds -[MF(η - MeHNCCNHMe)(dppe) (the molecular structure complex being authenticated by an X-ray analysis). Previously this was formulated as -[M(CNHMe) (dppe) and, unknowingly, it had provided first example reductive coupling isocyanide ligands. Base-induced CC cleavage (by Li Bu n to two ligands has been recognized form quantitatively [M(CNMe) for time.
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