New expanded-ring NHC platinum(0) complexes: Synthesis, structure and highly efficient diboration of terminal alkenes

Publication date: Available online 27 January 2020Source: Journal of Organometallic ChemistryAuthor(s): Sergey A. Rzhevskiy, Maxim A. Topchiy, Konstantin A. Lyssenko, Anna N. Philippova, Maria A. Belaya, Alexandra A. Ageshina, Maxim V. Bermeshev, Mikhail S. Nechaev, Andrey F. AsachenkoAbstractThe synthesis and structural characterization of a series of novel platinum(0) complexes were reported. A number of (NHC)Pt(dvtms) (dvtms = 1,3-divinyl-1,1,3,3-tetramethyldisiloxane) complexes were investigated in catalytic addition of B2Pin2 to terminal alkenes. The novel expanded ring N-heterocyclic carbene complex (7-Dipp)Pt(dvtms) showed highest performance, turnover numbers up to 3800 were achieved. The scope of the reaction was illustrated by 20 examples with a variety of alkyl, alkoxy, halogen, ester, ketone and acetal substituents.Graphical abstract

Source: Journal of Organometallic Chemistry - January 29, 2020 Category: Chemistry Source Type: research