1337540-80-3Relevant academic research and scientific papers
Reactions of Ru-alkynyl complexes with electrophilic boranes
Boone, Michael P.,Stephan, Douglas W.
, p. 5537 - 5542 (2011)
The species CpRu(PPh3)2(C≡CPh) (1) reacts with HB(C6F5)2 to effect the hydroboration of the metal-bound alkyne, giving the orange species CpRu(PPh3) 2CH=C(Ph)(B(C6F5)2) (2) in 95% isolated yield. Subsequent photolysis of this species results in the rearrangement of the vinyl group to give the species CpRu(PPh 3)[PhC≡C(B(H)(C6F5)2)] (3) in 87% yield. The species exhibits a side-on alkyne donation to Ru as well as a bridging BH fragment. Intermediates in this conversion are discussed in relation to known species, and support for a transient zwitterionic intermediate is offered by the isolation of CpRu(PPh3)2(C=CPh(C 6F4)BF(C6F5)2) (4) from the reaction of CpRu(PPh3)2(C≡CPh) with B(C 6F5)3. The compounds 2-4 are crystallographically characterized.
