93338-81-9Relevant academic research and scientific papers
Synthesis of Polyheterocyclic Tropones by [2 + 2 + 2 + 1] Carbonylative Cycloaddition of Triynes
Salacz, Laura,Girard, Nicolas,Blond, Ga?lle,Suffert, Jean
supporting information, p. 3915 - 3918 (2018/07/25)
A direct synthesis of tropones (2,4,6-cycloheptatrienes) from simple preorganized triynes has been elaborated. This simple rhodium-catalyzed domino strategy allows one-pot access to fully substituted tropones in a 6-6-7-5 tetracyclic core in average to hi
Extrapolation of the gold-catalyzed cycloisomerization to the palladium-catalyzed cross-coupling/cycloisomerization of acetylenic alcohols for the synthesis of polysubstituted furans: Scope and application to tandem processes
Praveen, Chandrasekar,Perumal, Paramasivan T.
, p. 288 - 299 (2016/02/23)
This paper describes the development of an integrated approach for the preparation of diverse furan derivatives from acetylenic alcohols by gold and palladium catalyzed π-activation chemistry. Notably, this new method was found to be amenable to cycloocty
3,3-bis(arylbenzofurans) via a gold-catalyzed domino process
Auzias, Mathieu G.,Neuburger, Markus,Wegner, Hermann A.
supporting information; experimental part, p. 2443 - 2448 (2010/11/18)
A new heterogeneous gold-catalyzed system for the domino cyclization oxidative coupling of 2-alkynyl phenols for the formation of 3,3-bisbenzofurans was developed. The substrate and the catalyst scope as well as the reaction conditions were investigated and optimized. This method provides access to this novel structural theme in two steps starting from commercially available chemicals. The molecular structure of the 3,3-bisbenzofurans was confirmed by single-crystal X-ray analysis. Georg Thieme Verlag Stuttgart · New York.
Gold(III) bromide catalyzed furannulation of 2-alkynylcycloalk-2-enols: An expedient route to fused furans
Praveen,Kiruthiga,Perumal
experimental part, p. 1990 - 1996 (2010/04/28)
An efficient synthesis of fused furans from 2-alkynylcycloalk-2-enols via gold(III) bromide catalyzed cycloisomerization was achieved. The reaction condition is moderate and amenable to structurally diverse substrates, leading to good yield of products. G
Chemoselectivity in Palladium-Catalyzed Reactions of 2-Bromoallyl Esters
Nwokogu, Godson C.
, p. 3900 - 3908 (2007/10/02)
The chemoselectivity of palladium-catalyzed reactions of 2-bromoallyl esters has been established.With compatible carbon nucleophiles, 2-bromoallyl esters gave products of couplling to the vinyl bromide moiety instead of nucleophilic allylic substitution.Products from reactions with nitrogen nucleophiles and in the absence of added nucleophiles are also consistent with the absence or minor importance of the (?-allyl)palladium complex formation as a competing pathway.These results illustrate an unusual influence of the 2-bromo substituent on the usual ease of fission of the allylic C-O bond.
A NEW TYPE OF FUNCTIONAL GROUP DIFFERENTIATION IN PALLADIUM-CATALYZED REACTIONS
Nwokogu, Godson C.
, p. 3263 - 3266 (2007/10/02)
Products of palladium-catalyzed ethynylations of various 2-bromoallyl acetates show that the formation of ?-vinylpalladium intermediates, instead of ?-allylpalladium complexes, is preferred in such substrates.
