59095-52-2Relevant articles and documents
Ligand-Effect in Gold(I)-Catalyzed Rautenstrauch Rearrangement: Regio- and Stereoselective Synthesis of Bicyclo[3.2.1]octa-3,6-dienes through Cyclodimerization of 1-Ethynyl-2-propenyl Esters
Zhao, Jidong,Yang, Shuang,Xie, Xin,Li, Xiangdong,Liu, Yuanhong
, p. 1287 - 1297 (2018/02/09)
Gold(I) complexes bearing sterically demanding phosphine ligands such as tBuXphos catalyze the cascade Rautenstrauch rearrangement/[4 + 3] cycloaddition of 1-ethynyl-2-propenyl esters. The reaction provides an efficient and straightforward rout
Asymmetric formal synthesis of (+)-pyrenolide D
Markovic, Martin,Lopatka, Pavol,Koos, Peter,Gracza, Tibor
, p. 817 - 821 (2014/04/03)
A concise, asymmetric formal synthesis of (+)-pyrenolide D from (E)-crotonaldehyde is described. The key steps include an enantioselective Sharpless dihydroxylation of protected hex-4-en-1-yn-3-ol and a highly diastereoselective palladium-catalysed oxycarbonylation of (2R,3S,4S)-hex-5-ene- 2,3,4-triol using iron pentacarbonyl as the carbon monoxide source. Georg Thieme Verlag Stuttgart · New York.
Rh-Catalyzed [5+1] and [4+1] cycloaddition reactions of 1,4-enyne esters with co: A shortcut to functionalized resorcinols and cyclopentenones
Fukuyama, Takahide,Ohta, Yuko,Brancour, Celia,Miyagawa, Kazusa,Ryu, Ilhyong,Dhimane, Anne-Lise,Fensterbank, Louis,Malacria, Max
supporting information; experimental part, p. 7243 - 7247 (2012/07/03)
We have developed novel Rh-catalyzed [n+1]-type cycloadditions of 1,4-enyne esters, which involve an acyloxy migration as a key step. The efficient preparation of functionalized resorcinols, including biaryl derivatives, from readily available 1,4-enyne esters and CO was achieved by Rh-catalyzed [5+1] cycloaddition accompanied by 1,2-acyloxy migration. When enyne esters had an internal alkyne moiety, the reaction proceeded by a [4+1]-type cycloaddition involving 1,3-acyloxy migration, leading to cyclopentenones.
