106344-19-8

Upstream product

• 25263-88-1 trans-[ReCl(N₂)(dppe)2] 
• 18169-72-7 trimethylsilyl isocyanide 
• 7677-24-9 trimethylsilyl cyanide 

Relevant academic research and scientific papers

Aminocarbyne and isocyanide complexes of rhenium. Crystal structures of trans-[ReCl(CNR)(Ph2PCH2CH2PPh 2)2] (R = H or SiMe3)

Treatment of a thf solution of trans-[ReCl(N2)(dppe)2] with an excess of NCSiMe3 in sunlight led to the formation of trans-[ReCl(CNSiMe3)(dppe)2] 1 in which the trimethylsilyl isocyanide ligand undergoes desilylation by acid or MeOH to give the aminocarbyne trans-[ReCl(CNH2)(dppe)2]A 2 (A = BF4 or Cl) upon treatment with an excess of HBF4 or HCl or the isocyanide trans-[ReCl(CNH)(dppe)2] 3 upon treatment with a stoichiometric amount of HCl or with MeOH. Complexes 2 convert into 3 by reaction with [NBu4]OH or NEt3 (a more convenient route for 3 than the above), and conversely are obtained from the reaction of 3 with HBF4 or HCl. Anodic controlled potential electrolysis of a solution of 2 (A = BF4) in 0.2 mol dm-3 [NBu4][BF4]-NCMe, until the consumption of 2 F mol-1, resulted in complete deprotonation of the aminocarbyne ligand to give the cyano-complex trans-[ReCl(CN)(dppe)2]-[BF4] 4 which, upon hydrogen abstraction from the electrolytic medium, converts into the isocyanide compound 3+ isolated as trans-[ReCl(CNH)(dppe)J[BF4]·2[NBu4][BF 4]. The detailed syntheses and spectroscopic properties of all these complexes are reported, as well as the crystal structures of 1 and 3, and are discussed in terms of electronic and stereochemical properties of the ligands and binding metal centres. The Royal Society of Chemistry 2000.

The Aminocarbyne Ligand CNH2: Metal-centered Synthesis from a Cyanosilane, Preparation and X-Ray Structure of trans-BF4

Treatment of trans- (dppe = Ph2PCH2CH2PPh2) with trimethylsilyl cyanide affords trans- (1) which, on reaction with MeOH or HBF4, gives trans- (2) and trans-BF4 (3), respectively; the X-ray structure of complex (3) has been determined.