117516-63-9Relevant articles and documents
Regioselective tandem dimethylsulfonium methylide addition - Eliminative olefination of diendioates: A novel route to 1,3-butadien-2-ylmalonates
Singh, Rekha,Ghosh, Sunil K.
, p. 5071 - 5074 (2007)
The appropriate choice of dimethylsulfonium methylide generation conditions enables the highly regioselective tandem ylide addition-eliminative olefination to 1,3-dienedioates providing 1,3-butadien-2-ylmalonates, a novel class of 2-substituted 1,3-dienes suitable for quick assembly of precursors for type 2 intramolecular Diels-Alder reactions.
Palladium-Catalyzed Regioselective C-2 Arylation of Benzofurans with N′-Acyl Arylhydrazines
Cao, Jun,Chen, Zi-Li,Li, Shu-Min,Zhu, Gao-Feng,Yang, Yuan-Yong,Wang, Cong,Chen, Wen-Zhang,Wang, Jian-Ta,Zhang, Ji-Quan,Tang, Lei
supporting information, p. 2774 - 2779 (2018/06/21)
A novel ligand-free palladium-catalyzed C-2 arylation of benzofurans has been developed using N′-acyl arylhydrazines as the coupling partners and TEMPO as an oxidant. This protocol features a wide functional-group tolerance and highly regioselective products with good to excellent yields.
Palladium-Catalyzed Dearomatizing Difunctionalization of Indoles and Benzofurans
Ramella, Vincenzo,He, Zhiheng,Daniliuc, Constantin G.,Studer, Armido
supporting information, p. 2268 - 2273 (2016/05/19)
A palladium-catalyzed dearomatizing difunctionalization of N-Boc-indoles and benzofurans to give tricyclic indolines and 2,3-dihydrobenzofurans with a fully substituted carbon center is described. Product formation occurs under mild conditions at room temperature with commercially available aryl boronic acids and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) as a mild oxidant in good yields. 2-Carboxyalkyl-substituted indoles and benzofurans react under Pd-catalysis with aryl boronic acids and TEMPO through dearomatizing arylation/cyclization to the corresponding indolines and dihydrobenzofurans containing a lactone moiety bearing a fully substituted carbon center.