Results 71 to 80 of about 6,547 (205)

Enhanced Hydroformylation in a Continuous Flow Microreactor System

, 2020
A microreactor system consisting of a honeycomb microreactor and microtubing was proposed to enhance the Rh-biphephos catalyzed hydroformylation of 1-hexene. The effects of various reaction parameters were investigated.
Sun, Y, Wang, S, Peng, F, Zhang, J, Tang, Z   +4 more
core   +1 more source

Comparison of Antibacterial Activity of Natural and Hydroformylated Essential Oil of Growing Wild in North Sardinia with Commercial Essential Oils

Natural Product Communications, 2010
Thymus capitatus growing wild in Sardinia showed different essential oil composition if grown surrounding Cagliari than in north Sardinia. Here we verify the composition and antimicrobial activity of the oil to make it suitable for the cosmetic and ...
Marianna Usai, Marzia Foddai, Barbara Sechi, Claudia Juliano, Mauro Marchetti   +4 more
doaj   +1 more source

Asymmetric synthesis using branched selective hydroformylation [PDF]

, 2019
This thesis investigates the application of branched selective hydroformylation for the asymmetric synthesis of natural products and pharmaceutical intermediates.
Pittaway, Rachael
core   +1 more source

Atomic-level insights in optimizing reaction paths for hydroformylation reaction over Rh/CoO single-atom catalyst

Nature Communications, 2016
Despite the advantages of using heterogeneous catalysts, most successful rhodium hydrogenations are carried out with homogeneous catalysts. Here the authors report a supported single atom rhodium catalyst providing high activities and selectivities for ...
Liangbing Wang, Wenbo Zhang, Shenpeng Wang, Zehua Gao, Zhiheng Luo, Xu Wang, Rui Zeng, Aowen Li, Hongliang Li, Menglin Wang, Xusheng Zheng, Junfa Zhu, Wenhua Zhang, Chao Ma, Rui Si, Jie Zeng   +15 more
doaj   +1 more source

Microwave assisted hydroformylation without syngas

, 2011
Hydroformylation is a powerful reaction that has suffered for some negative prejudices related to the use of gaseous H-2 and CO. Now it is possible to carry out hydroformylation and different cyclohydrocarbonylations, even on complex substrates, using ...
GIRARD N., MANN A., TADDEI M., SALVADORI J., AIRIAU E., CINI E.   +5 more
core   +1 more source

Precious metal loaded organically modified silica for organic transformations [PDF]

, 2011
PhDPrecious Metal Loaded Organically Modified Silica for Organic Transformations Highly active heterogeneous silica supported palladium ethylthioglycolate, silica-60-G1- Pd(OAc) and silica supported 1,2-bis(ethylthio)ethane palladium, silica-60-C2-Pd ...
Qazi, Asma R.
core   +1 more source

The Hydroformylation of 2-Pentene-5,5,5-d3

CHIMIA, 1974
In the title reaction, at low pCO (5 at), rapid isomerisation of the substrate occurs and a random distribution of deuterium in the reaction products has been found.
Denis A. von Bézard, Giambattista Consiglio, Piero Pino   +2 more
doaj   +1 more source

Heterogeneous asymmetric hydroformylation of olefins on chirally modified Rh/SiO2 catalysts

, 2006
Heterogeneous chiral catalysts were prepared by modifying silica-supported rhodium (Rh/SiO2) with chiral phosphorus ligands. The chirally modified Rh/SiO2 catalysts exhibited high activity, regioselectivity, and enantioselectivity for the asymmetric ...
Li, Xiaohong, Li, Jun, Liu, Zhimin, Zhang, Huidong, Li, Can, 李灿, Han, Difei   +6 more
core   +1 more source

From Poison to Promotor: Spatially Isolated Metal Sites in Supported Rhodium Sulfides as Hydroformylation Catalysts

Small Structures
The hydroformylation of alkenes is a cornerstone transformation for the chemical industry, central for both functionalizing and extending the carbon backbone of an alkene.
Arjun Neyyathala, Edvin Fako, Sandip De, Daria Gashnikova, Florian Maurer, Jan‐Dierk Grunwaldt, Stephan A. Schunk, Schirin Hanf   +7 more
doaj   +1 more source