Gold-Catalyzed 1,2-Acyloxy Migration/Coupling Cascade of Propargyl Diazoacetates: Synthesis of Isomycin Derivatives
作者:Ming Bao、Xin Wang、Lihua Qiu、Wenhao Hu、Philip Wai Hong Chan、Xinfang Xu
DOI:10.1021/acs.orglett.9b00392
日期:2019.3.15
An efficient gold(I)-catalyzed carbocyclization reaction for the synthesis of isomycin derivatives from propargyl diazoacetates has been developed. The suggested cyclization pathway delineated the first example of a vinyl gold carbenoid species generated in situ from gold(I)-catalyzed 1,2-acyloxy migration and intercepted by a cross-coupling reaction with the remaining tethered diazo functionality
Desymmetrization construction of chiral lactones by synergistic Cu(II) complex and organic base
作者:Murad Ali、Changkun Li
DOI:10.1016/j.tetlet.2020.152106
日期:2020.7
A highly enantioselective construction of quaternary carbon center has been realized by the desymmetrization strategy. Chiral enol lactones with up to 95% ee could be synthesized from prochiral dialkynoic acid under the catalysis of synergistic chiral Cu(II) complex and chiral (DHQ)(2)-PHAL base. (C) 2020 Elsevier Ltd. All rights reserved.
Palladium-Catalyzed Carbon-Carbon Bond Formation on a Solid Phase Utilizing Hypervalent Iodonium Salts
作者:Suk-Ku Kang、Seok-Keun Yoon、Kwon-Ho Lim、Hoe-Joo Son、Tae-Gon Baik
DOI:10.1080/00397919808004911
日期:1998.10
Palladium-catalyzed cross-coupling of hypervalent iodonium salts with polymer bound alkene, alkyne, and boronate was achieved under mild conditions.