215254-71-0Relevant academic research and scientific papers
Amine Catalysis for the Organocatalytic Diboration of Challenging Alkenes
Farre, Albert,Soares, Kaline,Briggs, Rachel A.,Balanta, Angelica,Benoit, David M.,Bonet, Amadeu
, p. 17552 - 17556 (2016)
The generation of in situ sp2–sp3diboron adducts has revolutionised the synthesis of organoboranes. Organocatalytic diboration reactions have represented a milestone in terms of unpredictable reactivity of these adducts. However, current methodologies have limitations in terms of substrate scope, selectivity and functional group tolerance. Here a new methodology based on the use of simple amines as catalyst is reported. This methodology provides a completely selective transformation overcoming current substrate scope and functional/protecting group limitations. Mechanistic studies have been included in this report.
Rhodium catalysed diboration of unstrained internal alkenes and a new and general route to zwitterionic [L2Rh(η6-catBcat)] (cat = 1,2-O2C6H4) complexes
Dai, Chaoyang,Robins, Edward G.,Scott, Andrew J.,Clegg, William,Yufit, Dmitri S.,Howard, Judith A. K.,Marder, Todd B.
, p. 1983 - 1984 (2007/10/03)
Reactions of [L2Rh(acac)] (L = alkene or phosphine) with B2cat3 yield the zwitterionic complexes [L2Rh(η6-catBcat)] and [(acac)Bcat] cleanly; [(dppm)Rh(η6-catBcat)), the X-ray structure of which is reported, is an excellent catalyst for the diboration of vinylarenes and unstrained internal alkenes cis- and trans-stilbene and trans-β-methylstyrene.
