90812-15-0Relevant articles and documents
Synthesis, identification and study of the anti-microbial activity of novel Chalcone and epoxy Chalcone compounds
Hussein, Kawkab A.,Shihab, Nezar L.,Saeed, Bahjat A.
, p. 2297 - 2304 (2021/04/22)
In this study, new chalcone and epoxy chalcone synthesized by condensation of 4-acetylbiphenyl with the appropriate aldehydes. The epoxy chalcone prepared via the reaction chalcone with alkaline hydrogen peroxide in methanol. We characterized their mass s
Asymmetric 1,4-Conjugate Addition of Diarylphosphines to α,β,γ,δ-Unsaturated Ketones Catalyzed by Transition-Metal Pincer Complexes
Yang, Xiang-Yuan,Tay, Wee Shan,Li, Yongxin,Pullarkat, Sumod A.,Leung, Pak-Hing
supporting information, p. 5196 - 5201 (2015/11/09)
An enantioselective asymmetric 1,4-addition of diarylphosphines to linear α,β,γ,δ-unsaturated dienones was developed. A series of chiral PCP- and PCN-transition-metal (Pd, Pt and Ni) pincers, themselves prepared catalytically via asymmetric hydrophosphination, were sequentially screened to reveal the roles of backbone architecture and metal ion in catalyst design. The selected ester-functionalized PCP-palladium pincer afforded the chiral 1,4-phosphine adducts in excellent yields with up to >99% ee. The same catalyst when utilized for the hydrophosphination of an α,β,γ,δ-unsaturated malonate ester also revealed the critical role played by the ester functionality on the ligand backbone in dictating the enantioselectivity of the 1,6-adduct.
