Issue 32, 2022

Diametric calix[6]arene gold(i) catalysts for intramolecular cyclopropanations of 1,6-dienynes

Abstract

We report a solid-state structural investigation of diametric calix[6]arene-based phosphine gold(I) cavitands which are characterised by two specific, different 1,2,3-alternate conformations in solution and in the solid state. The effect of the specific orientation of phosphines, with respect to macrocycles, was studied in intramolecular cyclopropanation of 1,6-dienynes. The general applicability of these catalysts was disclosed, delivering a family of polycycles with high yields and functional group tolerance.

Graphical abstract: Diametric calix[6]arene gold(i) catalysts for intramolecular cyclopropanations of 1,6-dienynes

Supplementary files

Article information

Article type
Paper
Submitted
09 Jun 2022
Accepted
22 Jul 2022
First published
22 Jul 2022

Org. Biomol. Chem., 2022,20, 6464-6472

Diametric calix[6]arene gold(I) catalysts for intramolecular cyclopropanations of 1,6-dienynes

G. Giovanardi, D. Balestri, A. Secchi and G. Cera, Org. Biomol. Chem., 2022, 20, 6464 DOI: 10.1039/D2OB01074G

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