Title :

In situ mo(co)(6)-based catalysts for alkyne metathesis: silanols vs phenols as co-catalysts under thermal and photochemical activation

Author(s) :

Zaranek, Maciej [Auteur]
Robaszkiewicz, Jakub [Auteur]
Janica, Iwona [Auteur]
Gauvin, Regis [Auteur]
Unité de Catalyse et de Chimie du Solide (UCCS) - UMR 8181
Pawluc, Piotr [Auteur]
Mortreux, Andre [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Journal title :

Catalysis Communications

Abbreviated title :

Catal. Commun.

Volume number :

138

Publication date :

2020-04-15

ISSN :

1566-7367

Keyword(s) :

Molybdenum
Photochemical activation
Silanols
Phenols
Alkyne metathesis

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

A systematic study on the use of silanols and phenols as effective activators in Mo(CO)₆-based catalytic systems for metathesis of 4-decyne and 1-phenyl-1-propyne is reported. In comparison with traditionally used phenols, ...
Show more >A systematic study on the use of silanols and phenols as effective activators in Mo(CO)₆-based catalytic systems for metathesis of 4-decyne and 1-phenyl-1-propyne is reported. In comparison with traditionally used phenols, aryl-substituted silanols exhibit high activating potential of molybdenum species even at lower concentrations (2 mol% of Mo(CO)₆ and 4-20 mol% of silanol depending on the alkyne) at toluene reflux. Silylated phenols and silanols are also suitable as co-catalysts. Additionally, Mo(CO)₆/silanol catalytic system is shown to be efficiently activated by UV-irradiation at room temperature, whereas it is less effective for metathesis reactions performed in the presence of phenols.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Catalyse et synthèse éco-compatible (CASECO)

Submission date :

2022-03-02T07:14:32Z
2023-12-15T19:18:08Z