Addition of Arylboronic Acids to Arylpropargyl Alcohols en Route to Indenes and Quinolines
摘要:
A regio- and stereoselective rhodium-catalyzed synthesis of trisubstituted allylic alcohols is described. The utility of these synthons is demonstrated in a convenient synthesis of indenes and quinolines.
Palladium-catalyzed desulfitative addition of sodium sulfinates with α,β-unsaturated carbonyl compounds
作者:Wen Chen、Xianya Zhou、Fuhong Xiao、Jiaying Luo、Guo-Jun Deng
DOI:10.1016/j.tetlet.2012.06.026
日期:2012.8
A palladium-catalyzed desulfitative conjugate addition of sodium sulfinates with α,β-unsaturatedcarbonylcompounds is described. The reaction showed very good selectivity and tolerated a wide range of functionalities under an atmosphere of argon.
Sequential Aldol Condensation-Transition Metal-Catalyzed Addition Reactions of Aldehydes, Methyl Ketones, and Arylboronic Acids
作者:Yuan-Xi Liao、Chun-Hui Xing、Matthew Israel、Qiao-Sheng Hu
DOI:10.1021/ol200457q
日期:2011.4.15
Sequential aldol condensation of aldehydes with methyl ketones followed by transition metal-catalyzed addition reactions of arylboronic acids to form β-substituted ketones is described. By using the 1,1′-spirobiindane-7,7′-diol (SPINOL)-based phosphite, an asymmetric version of this type of sequential reaction, with up to 92% ee, was also realized. Our study provided an efficient method to access β-substituted
Tandem Aldol Condensation/Platinacycle-Catalyzed Addition Reactions of Aldehydes, Methyl Ketones, and Arylboronic Acids
作者:Yuan-Xi Liao、Qiao-Sheng Hu
DOI:10.1002/ejoc.201200867
日期:2012.10
Tandem aldolcondensation of aldehydes with methylketones followed by anionic four-electron donor-based (Type I) platinacycle-catalyzed addition reactions of arylboronic acids to form beta-arylated ketones is described. Good to excellent yields of beta-arylated ketones were obtained for the tandem reactions of aromatic/aliphatic aldehydes, methylketones and arylboronic acids, and moderate yields