1619901-87-9Relevant articles and documents
Palladium-Catalyzed Cascade to Benzoxepins by Using Vinyl-Substituted Donor–Acceptor Cyclopropanes
Faltracco, Matteo,van de Vrande, Koen N. A.,Dijkstra, Martijn,Saya, Jordy M.,Hamlin, Trevor A.,Ruijter, Eelco
supporting information, p. 14410 - 14414 (2021/05/31)
A palladium-catalyzed intermolecular cascade (4+3) cyclocondensation of salicylaldehydes and vinylcyclopropanes is reported. A key feature of the reaction is the use of a phosphonate group as an acceptor moiety on the cyclopropane, exploiting its propensity to undergo olefination with aldehydes. Subsequent O-allylation enabled the formation of a range of substituted benzoxepinsWith a novel chiral ligand, the products were obtained in generally good yield and with reasonable enantioselectivity.
Iridium-catalyzed allylic alkylation reaction with N-aryl phosphoramidite ligands: Scope and mechanistic studies
Liu, Wen-Bo,Zheng, Chao,Zhuo, Chun-Xiang,Dai, Li-Xin,You, Shu-Li
supporting information; experimental part, p. 4812 - 4821 (2012/04/23)
A series of N-aryl phosphoramidite ligands has been synthesized and applied to iridium-catalyzed allylic alkylation reactions, offering high regio- and enantioselectivities for a wide variety of substrates. These ligands feature the synthetic convenience and good tolerance of the ortho-substituted cinnamyl carbonates. Mechanistic studies, including DFT calculations and X-ray crystallographic analyses of the (π-allyl)-Ir complexes, reveal that the active iridacycle is formed via C(sp2)-H bond activation.