Regioselective Rh(I)-Catalyzed Sequential Hydrosilylation toward the Assembly of Silicon-Based Peptidomimetic Analogues
摘要:
A highly regioselective Rh(I)-catalyzed hydrosilylation of enamides is presented. This mild protocol allows access to a wide variety of different arylsilanes with substitution at the beta-position of the enamide and functionalization on the alkyl chain tethered to the silane. This protocol is extended to include a sequential one-pot hydrosilylation. Using diphenylsilane as the appendage point, hydrosilylation of a protected allyl alcohol followed by hydrosilylation of an enamide generates a complex organosilane in one step. This highly convergent strategy to synthesize these functionalized systems now provides a way for the rapid assembly of a diverse collection of silane-based peptidomimetic analogues.
Siloxane-containing phosphine (oxide) ligands for enhanced catalytic activity of cobalt complexes for hydrosilylation reactions
作者:Peng Liu、Jiajian Peng、Ying Bai、Jiayun Li
DOI:10.1039/d4ob00333k
日期:——
series of siloxane-containing phosphine (oxide) ligands have been designed and synthesized. These phosphine (oxide) ligands contain silicon atoms, which can impart better solubility in the relevant media, thereby improving certain catalytic performances. The hydrosilylation of olefins catalyzed by these metal phosphine (oxide) complexes has been conducted under mild reaction conditions.