Merging Molecular Recognition and Gold(I) Catalysis with Triphoscalix[6]arene Ligands. Issue 40 (4th June 2021)

• Record Type: Journal Article
• Authors: Cera, Gianpiero; Giovanardi, Gabriele; Secchi, Andrea; Arduini, Arturo
• Is Part Of: Chemistry. Volume 27:Issue 40(2021)
• Page Start: 10261
• Page End: 10266
• Publication Date: 2021-06-04
• Subjects: calix[6]arenes -- gold catalysis -- molecular recognition -- phosphines -- pseudorotaxanes; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.202101323
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: We report the synthesis and characterization of novel triphosphine calix[6]arene ligands. These supramolecular wheels, with recognition features governed by the hydrogen‐bonding domain, were employed to synthesize multitasking trinuclear gold(I) complexes as a new platform for the synthesis of interwoven (pseudo)rotaxane species. In parallel, the multivalent, metal‐bonded upper rim displayed catalytic features promoting highly selective gold‐catalyzed cycloisomerization reactions of 1, 6‐enynes. Abstract : New wheels for cycloisomerizations : We report the synthesis of novel trinuclear triphosphine‐gold(I)‐calix[6]arene complexes A and B . These multitasking supramolecular wheels, which could be employed as a platform for the synthesis of interwoven (pseudo)rotaxanes species, displayed catalytic features promoting highly selective cycloisomerizations of 1, 6‐enynes.