C–N Bond Formation between Alcohols and Amines Using an Iron Cyclopentadienone Catalyst
摘要:
An iron-tetraphenylcyclopentadienone tricarbonyl complex is demonstrated to act as a precursor of a catalyst for the formation of C-N bonds through a hydrogen-borrowing reaction between amines and alcohols.
Synthesis and Catalytic Activity of (3,4-Diphenylcyclopentadienone)Iron Tricarbonyl Compounds in Transfer Hydrogenations and Dehydrogenations
作者:Timothy W. Funk、Andrew R. Mahoney、Rebecca A. Sponenburg、Kathryn P. Zimmerman、Daniel K. Kim、Emily E. Harrison
DOI:10.1021/acs.organomet.8b00037
日期:2018.4.9
4-diphenylcyclopentadienone)iron tricarbonyl compounds were synthesized, and their activities in transfer hydrogenations of carbonyl compounds and transfer dehydrogenations of alcohols were explored and compared to those of the well-established [2,5-(SiMe3)2-3,4-(CH2)4(η4-C4C═O)]Fe(CO)3 (3). A new compound, [2,5-bis(3,5-dimethylphenyl)-3,4-diphenylcyclopentadienone]iron tricarbonyl (7), was the most
(Cyclopentadienone)iron Shvo Complexes: Synthesis and Applications to Hydrogen Transfer Reactions
作者:Tarn C. Johnson、Guy J. Clarkson、Martin Wills
DOI:10.1021/om101101r
日期:2011.4.11
A series of (cyclopendienone)iron tricarbonylcomplexes were prepared using an intramolecular cyclization strategy. These were applied to the catalysis of the oxidation of alcohols to aldehydes and ketones. When paraformaldehyde was used as the hydrogen acceptor, formate esters were obtained as coproducts and, in several cases, the major products.
New air-stable iron catalyst for efficient dynamic kinetic resolution of secondary benzylic and aliphatic alcohols
作者:Qiong Yang、Na Zhang、Mingke Liu、Shaolin Zhou
DOI:10.1016/j.tetlet.2017.05.038
日期:2017.6
catalyst system for the dynamic kineticresolution of secondaryalcohols by combining the enzymatic resolution with an iron-catalyzed racemization. A new air-stable tricarbonyl (cyclopentadienone)iron complex is identified as the active racemization catalyst for this transformation without any additive. Various substrates including benzylic, heteroaromatic, aliphatic alcohols can be used and afford the
Chemoselective formation of cyclo-aliphatic and cyclo-olefinic 1,3-diols <i>via</i> pressure hydrogenation of potentially biobased platform molecules using Knölker-type catalysts
作者:Christian A. M. R. van Slagmaat、Teresa Faber、Khi Chhay Chou、Alfonso J. Schwalb Freire、Darya Hadavi、Peiliang Han、Peter J. L. M. Quaedflieg、Gerard K. M. Verzijl、Paul L. Alsters、Stefaan M. A. De Wildeman
DOI:10.1039/d1dt01252e
日期:——
Hemicellulose-derived five-membered cyclic ketones are strategic precursors for sustainable 1,3-diol building blocks, and bifunctional iron catalysts provide unprecedented chemoselectivity in hydrogenation toward aliphatic and olefinic structures.
Iron-catalyzed selective production of methyl esters from aldehydes
申请人:Eastman Chemical Company
公开号:US10590062B1
公开(公告)日:2020-03-17
A process for making methyl esters in high yields is provided. The process comprises contacting aliphatic or aromatic aldehydes and methanol with an iron catalyst, to catalyze the dehydrogenative coupling between aliphatic or aromatic aldehydes and methanol. The reaction is highly selective (<99.9%) toward the formation of methyl esters over homoesters and alcohols and operates at temperatures of less than 100° C. for 2-8 hours.