Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 σ-π-Diauration as an alternative binding mode for digold intermediates in gold(i) catalysis.

Literature DB >> 23914295

σ-π-Diauration as an alternative binding mode for digold intermediates in gold(i) catalysis.

Abstract

While investigating the gold(i)-catalyzed intramolecular hydroarylation of allenes, the structure of a digoldvinyl intermediate was verified. Instead of the previously proposed geminally diaurated binding mode for the digold when L = PPh3, an alternative σ-π-diauration mode was observed with the bulkier ligand L = P(o-Tol)3. Reactivity studies indicate the σ-π-mode has a disproportionate effect on protonolysis reactivity.

Entities: Chemical Disease Gene

Year: 2013 PMID： 23914295 PMCID： PMC3729438 DOI： 10.1039/C2SC21281A

Source DB: PubMed Journal: Chem Sci ISSN： 2041-6520 Impact factor: 9.825

32 in total

1. Elementary steps in gold catalysis: the significance of gem-diauration.

Authors: Günter Seidel; Christian W Lehmann; Alois Fürstner
Journal: Angew Chem Int Ed Engl Date: 2010-11-02 Impact factor: 15.336

2. Gold-mediated C-H bond functionalisation.

Authors: Tanya C Boorman; Igor Larrosa
Journal: Chem Soc Rev Date: 2010-11-22 Impact factor: 54.564

3. Gold-catalyzed organic reactions.

Authors: A Stephen K Hashmi
Journal: Chem Rev Date: 2007-06-20 Impact factor: 60.622

Review 4. Gold and platinum catalysis--a convenient tool for generating molecular complexity.

Authors: Alois Fürstner
Journal: Chem Soc Rev Date: 2009-07-22 Impact factor: 54.564

5. Mechanistic surprises in the gold(I)-catalyzed intramolecular hydroarylation of allenes.

Authors: Dieter Weber; Michael A Tarselli; Michel R Gagné
Journal: Angew Chem Int Ed Engl Date: 2009 Impact factor: 15.336

6. Heterocycles from gold catalysis.

Authors: Matthias Rudolph; A Stephen K Hashmi
Journal: Chem Commun (Camb) Date: 2011-03-31 Impact factor: 6.222

7. Mechanistic analysis of gold(I)-catalyzed intramolecular allene hydroalkoxylation reveals an off-cycle bis(gold) vinyl species and reversible C-O bond formation.

Authors: Timothy J Brown; Dieter Weber; Michel R Gagné; Ross A Widenhoefer
Journal: J Am Chem Soc Date: 2012-05-29 Impact factor: 15.419

8. Phosphine gold(I) bis-(trifluoromethanesulfonyl)imidate complexes as new highly efficient and air-stable catalysts for the cycloisomerization of enynes.

Authors: Nicolas Mézailles; Louis Ricard; Fabien Gagosz
Journal: Org Lett Date: 2005-09-15 Impact factor: 6.005

σ-π-Diauration as an alternative binding mode for digold intermediates in gold(i) catalysis.

1. Elementary steps in gold catalysis: the significance of gem-diauration.

2. Gold-mediated C-H bond functionalisation.

3. Gold-catalyzed organic reactions.

Review 4. Gold and platinum catalysis--a convenient tool for generating molecular complexity.

5. Mechanistic surprises in the gold(I)-catalyzed intramolecular hydroarylation of allenes.

6. Heterocycles from gold catalysis.

7. Mechanistic analysis of gold(I)-catalyzed intramolecular allene hydroalkoxylation reveals an off-cycle bis(gold) vinyl species and reversible C-O bond formation.

8. Phosphine gold(I) bis-(trifluoromethanesulfonyl)imidate complexes as new highly efficient and air-stable catalysts for the cycloisomerization of enynes.

9. Gold-catalyzed decorations of arenes and heteroarenes with C-C multiple bonds.

10. Dinuclear gold-silver resting states may explain silver effects in gold(I)-catalysis.

1. Direct Evidence for the Origin of Bis-Gold Intermediates: Probing Gold Catalysis with Mass Spectrometry.

2. Gold(i)-catalyzed addition of aldehydes to cyclopropylidene bearing 6-aryl-1,5-enynes.

3. Intriguing mechanistic labyrinths in gold(I) catalysis.

4. Anatomy of gold catalysts: facts and myths.

5. Scalable Synthesis of Piperazines Enabled by Visible-Light Irradiation and Aluminum Organometallics.