6839-10-7Relevant academic research and scientific papers
Bis(2-alkylpyrrolidin-1-yl)methylidenes as chiral acyclic diaminocarbene ligands
Snead, David R.,Inagaki, Sebastien,Abboud, Khalil A.,Hong, Sukwon
scheme or table, p. 1729 - 1739 (2010/06/14)
2-Alkylpyrrolidines were used as building blocks for acyclic diaminocarbenes (ADCs). First, ureas were made from the corresponding amines, and then the ureas were converted to chloroamidiniums. The chloroamidiniums served as direct precursors to ADCs, and
A new route to acyclic diaminocarbenes via lithium-halogen exchange
Snead, David R.,Ghiviriga, Ion,Abboud, Khalil A.,Hong, Sukwon
supporting information; experimental part, p. 3274 - 3277 (2009/12/01)
A lithium - halogen exchange route has been developed to generate acyclic diaminocarbenes (ADC) from chloroamidinium salts. Convenient access to various ADC complexes (B, Rh, lr, Pd) stems from a one-pot transmetalation protocol. Formation of a carbenoid species is suggested by 1D and 2D NMR studies with a 13C-labeled chloroamidinium precursor and also by X-ray structures of transition metal-carbene complexes. Rh-ADC complex 4 is an effective catalyst for the 1,2-addition of aryl boronic acids to aryl aldehydes.
Phosphazene base-promoted functionalization of aryltrimethylsilanes
Suzawa, Koichi,Ueno, Masahiro,Wheatley, Andrew E. H.,Kondo, Yoshinori
, p. 4850 - 4852 (2007/10/03)
The activation of Ar-Si bonds in aryltrimethylsilane was investigated using a catalytic amount of t-Bu-P4 base and selective functionalizations of aryltrimethylsilanes in the absence of strong electron withdrawing groups on the aromatic rings were accomplished. The Royal Society of Chemistry 2006.
