Reactions of β-diketiminate-stabilized calcium amides with 9-borabicyclo[3.3.1]nonane (9-BBN)
The reaction of a β-diketiminate-stabilized calcium diphenylamide with the dialkylborane 9-BBN allows the synthesis of a β-diketiminate- stabilized calcium borohydride along with an amidoborane reaction coproduct via a likely σ-bond metathesis mechanism.
Barrett, Anthony G.M.,Crimmin, Mark R.,Hill, Michael S.,Hitchcock, Peter B.,Procopiou, Panayiotis A.
Reactions of titanium hydrazides with silanes and boranes: N-N bond cleavage and N atom functionalization
Reaction of Ti(N2iPrN)(NNPh2)(py) with Ph(R)SiH2 (R = H, Ph) or 9-BBN gave reductive cleavage of the Nα-Nβ bond and formation of new silyl- or boryl-amido ligands. The corresponding reactions of CpTi{MeC(NiPr)2}(NNR2) (R = Me or Ph) with HBPin or 9-BBN gave borylhydrazido-hydride or borylimido products, respectively. Nα and Nβ atom transfer and dehydrogenative coupling reactions are also reported.
Stevenson, Laura C.,Mellino, Simona,Clot, Eric,Mountford, Philip
Alkaline-Earth-Catalyzed Dehydrocoupling of Amines and Boranes
Dehydrocoupling reactions between the boranes HBpin and 9-borabicyclo[3.3.1]nonane and a range of amines and anilines ensue under very mild reaction conditions in the presence of a simple β-diketiminato magnesium n-butyl precatalyst. The facility of the reactions is suggested to be a function of the Lewis acidity of the borane substrate, and is dictated by resultant pre-equilibria between, and the relative stability of, magnesium hydride and borohydride intermediates during the course of the catalysis.
Liptrot, David J.,Hill, Michael S.,Mahon, Mary F.,Wilson, Andrew S. S.
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p. 13362 - 13365
(2015/11/09)
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