Synthesis of Substituted 1‐Hydroxy‐2‐Naphthaldehydes by Rhodium‐Catalyzed C−H Bond Activation and Vinylene Transfer of Enaminones with Vinylene Carbonate
作者:Min Liu、Kelu Yan、Jiangwei Wen、Weihua Liu、Mingyu Wang、Lina Wang、Xiu Wang
DOI:10.1002/adsc.202101181
日期:2022.2
The rhodium(III)-catalyzed C−H bond activation and vinylene transfer of enaminones with vinylenecarbonate have been proposed for the synthesis of substituted 1-hydroxy-2-naphthaldehydes in 49–84% yields. Several preliminary mechanistic studies and hydroxyl-directed derivatization reactions of 1-hydroxy-2-naphthaldehydes were also performed. This method offers an alternative approach for the synthesis
Steric and Electronic Effects in Ethene/Norbornene Copolymerization by Neutral Salicylaldiminato-Ligated Palladium(II) Catalysts
作者:Frances Y. Pong、Sukhendu Mandal、Ayusman Sen
DOI:10.1021/om500470t
日期:2014.12.22
Three palladium(II) catalysts, ligated with naphthoxyimine ligands, were synthesized, structurally characterized, and used to copolymerizeethene with norbornene derivatives. Results show that modification of the functional group on the 8-carbon of the naphthol ligand can significantly influence polymer composition and structure. The three functional groups on the 8-carbon studied were −H (catalyst