Regiodivergent Synthesis of Functionalized Indene Derivatives via Pt-Catalyzed Rautenstrauch Reaction of Propargyl Carbonates
摘要:
A regiodivergent synthesis of functionalized indene derivatives from a Pt-catalyzed Rautenstrauch reaction of propargyl carbonate is described. A one-pot Rautenstrauch/Tsuji-Trost reaction delivering 2-indanones was realized efficiently using this methodology.
Decarboxylation-promoted Pd-catalyzed asymmetric propargylic [3 + 2] annulation for the enantioselective construction of a quaternary stereocenter in 2,3-dihydrofurans
作者:Kun Li、Fu-Lin Zhu、Zhen-Ting Liu、Jing Tong、Xiang-Ping Hu
DOI:10.1039/c7ob02778h
日期:——
The enantioselective construction of a quaternarystereocenter in 2,3-dihydrofuran frameworks has been realized via the palladium-catalyzedasymmetric [3 + 2] cycloaddition of tertiary propargylic carbonates with β-ketoesters enabled by a chiral ferrocene/benzimidazole-based bidentate P,N-ligand. The reaction was significantly promoted by loss of CO2 to irreversibly form π-propargylpalladium or allenylpalladium