In 2022,Li, Qiuyu; Fang, Xinxin; Pan, Rui; Yao, Hequan; Lin, Aijun published an article in Journal of the American Chemical Society. The title of the article was 《Palladium-Catalyzed Asymmetric Sequential Hydroamination of 1,3-Enynes: Enantioselective Syntheses of Chiral Imidazolidinones》.Product Details of 210169-54-3 The author mentioned the following in the article:
Pd-catalyzed sequential hydroamination of readily available 1,3-enynes was reported. The redox-neutral process provides an efficient route to synthesize a broad scope of imidazolidinones, thiadiazolidines, and imidazolidines. Asym. sequential hydroamination generates a series of synthetically valuable, enantioenriched imidazolidinones. Mechanistic studies revealed that the transformation occurred via an intermol. enyne hydroamination pathway to give an allene intermediate. Subsequent intramol. hydroamination of the allene intermediate was proceeded under the Curtin-Hammett principle to provide enantioenriched imidazolidinone products. The results came from multiple reactions, including the reaction of (S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxole(cas: 210169-54-3Product Details of 210169-54-3)
(S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxole(cas: 210169-54-3) is a chelating ligand used to prepare coordination complex catalysts, such as its use in Pd catalysts for the enantioselective synthesis of spiro- or benzofused hetereocycles with exocyclic olefins via enantioselective intramolecular dearomative Heck reaction of indoles, benzofurans, pyrroles and furans.Product Details of 210169-54-3
Referemce:
Phosphine ligand,
Chiral phosphines in nucleophilic organocatalysis