Base‐Free Iron Catalyzed Transfer Hydrogenation of Esters Using EtOH as Hydrogen Source

Herein, we report on the use of the iron pincer complex Iron‐MACHO‐BH, in the base‐free transfer hydrogenation of esters with EtOH as a hydrogen source. More than 20 substrates including aromatic and aliphatic esters and lactones were reduced affording the desired primary alcohols and diols with mod...

Celý popis

Uloženo v:
Podrobná bibliografie
Vydáno v:Angewandte Chemie International Edition Ročník 58; číslo 4; s. 1129 - 1133
Hlavní autoři: Farrar‐Tobar, Ronald A., Wozniak, Bartosz, Savini, Arianna, Hinze, Sandra, Tin, Sergey, de Vries, Johannes G.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Germany Wiley Subscription Services, Inc 21.01.2019
Vydání:International ed. in English
Témata:
Alcohols
Aliphatic compounds
base-free
Diols
ester compounds
Esters
Ethanol
Hydrogen storage
Hydrogenation
Iron
Lactones
Plastics recycling
Polyester resins
Polyesters
Substrates
transfer hydrogenation
iron
transfer hydrogenation
ester compounds
base-free
ethanol
ISSN:1433-7851, 1521-3773, 1521-3773
On-line přístup:Získat plný text
Tagy: Přidat tag
Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!
Popis
Shrnutí:Herein, we report on the use of the iron pincer complex Iron‐MACHO‐BH, in the base‐free transfer hydrogenation of esters with EtOH as a hydrogen source. More than 20 substrates including aromatic and aliphatic esters and lactones were reduced affording the desired primary alcohols and diols with moderate to excellent isolated yields. It is also possible to reduce polyesters to the diols with this method, enabling a novel way of plastic recycling. Reduction of the renewable substrate methyl levulinate proceeds to form 1,4‐pentanediol directly. The yields are largely governed by the equilibrium between the alcohol and the ethyl ester. Even plastic can be reduced! Transfer hydrogenation of esters and lactones with EtOH can be effected using 5 mol % of Fe‐MACHO‐BH as catalyst. This catalyst does not need any base activation, thus resulting in very high selectivities.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.201810605