On March 2, 2022, Franchino, Allegra; Marti, Alex; Echavarren, Antonio M. published an article.Electric Literature of 102-07-8 The title of the article was H-Bonded Counterion-Directed Enantioselective Au(I) Catalysis. And the article contained the following:
A new strategy for enantioselective transition-metal catalysis is presented, wherein a H-bond donor placed on the ligand of a cationic complex allows precise positioning of the chiral counteranion responsible for asym. induction. The successful implementation of this paradigm is demonstrated in 5-exo-dig and 6-endo-dig cyclizations of 1,6-enynes, combining an achiral phosphinourea Au(I) chloride complex with a BINOL-derived phosphoramidate Ag(I) salt and thus allowing the 1st general use of chiral anions in Au(I)-catalyzed reactions of challenging alkyne substrates. Experiments with modified complexes and anions, 1H NMR titrations, kinetic data, and studies of solvent and nonlinear effects substantiate the key H-bonding interaction at the heart of the catalytic system. This conceptually novel approach, which lies at the intersection of metal catalysis, H-bond organocatalysis, and asym. counterion-directed catalysis, provides a blueprint for the development of supramolecularly assembled chiral ligands for metal complexes. The experimental process involved the reaction of 1,3-Diphenylurea(cas: 102-07-8).Electric Literature of 102-07-8
The Article related to silver binaphtholphosphinate preparation catalyst enyne cyclization crystal structure, crystal structure silver binaphtholphosphinate gold phosphinothiourea complex, mol structure silver binaphtholphosphinate gold phosphinothiourea complex, gold phosphinothiourea complex preparation catalyst enyne cyclization crystal structure and other aspects.Electric Literature of 102-07-8
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