Semicontinuous Process for GMP Manufacture of a Carbapenem Intermediate via Carbene Insertion Using an Immobilized Rhodium Catalyst

2020 ◽  
Vol 24 (10) ◽  
pp. 2025-2033
Author(s):  
James R. Gage ◽  
Furong Chen ◽  
Changming Dong ◽  
Miguel A. Gonzalez ◽  
Yong Jiang ◽  
...  
Keyword(s):  
Rhodium Catalyst ◽  
Semicontinuous Process ◽  
Carbene Insertion

Preparation and characterisation of vanadium pentoxide supported rhodium catalyst

1988 ◽  
Vol 46 ◽  
pp. 946-947
Author(s):  
A. Legrouri
Keyword(s):  
Aqueous Solution ◽  
Thermal Decomposition ◽  
Physicochemical Properties ◽  
Surface Area ◽  
Vanadium Pentoxide ◽  
High Purity ◽  
Gas Adsorption ◽  
Rhodium Catalyst ◽  
Optical Methods ◽  
Reducible Oxides

The industrial importance of metal catalysts supported on reducible oxides has stimulated considerable interest during the last few years. This presentation reports on the study of the physicochemical properties of metallic rhodium supported on vanadium pentoxide (Rh/V2O5). Electron optical methods, in conjunction with other techniques, were used to characterise the catalyst before its use in the hydrogenolysis of butane; a reaction for which Rh metal is known to be among the most active catalysts.V2O5 powder was prepared by thermal decomposition of high purity ammonium metavanadate in air at 400 °C for 2 hours. Previous studies of the microstructure of this compound, by HREM, SEM and gas adsorption, showed it to be non— porous with a very low surface area of 6m2/g3. The metal loading of the catalyst used was lwt%Rh on V2Q5. It was prepared by wet impregnating the support with an aqueous solution of RhCI3.3H2O.

Phase Behavior of Hydrogenation of 2-tert-Butylphenol over a Charcoal-Supported Rhodium Catalyst in Carbon Dioxide Solvent†

2009 ◽  
Vol 54 (5) ◽  
pp. 1610-1612 ◽  
Author(s):  
Norihito Hiyoshi ◽  
Yoshio Masuda ◽  
Osamu Sato ◽  
Aritomo Yamaguchi ◽  
Chandrashekhar V. Rode ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Phase Behavior ◽  
Rhodium Catalyst ◽  
Supported Rhodium Catalyst

Nonaqueous Biphasic Hydroformylation of Long Chain Alkenes Catalyzed by Water Soluble Phosphine Rhodium Catalyst with Polyethylene Glycol Instead of Water

2017 ◽  
Vol 148 (1) ◽  
pp. 438-442 ◽  
Author(s):  
Yuanjiang Zhao ◽  
Yanli Liu ◽  
Jianzhang Wei ◽  
Haiyan Fu ◽  
Xueli Zheng ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Rhodium Catalyst ◽  
Water Soluble ◽  
Water Soluble Phosphine ◽  
Long Chain

Low Rhodium Catalyst Technology for Gasoline and FFV Applications

2009 ◽  
Author(s):  
Jeffrey P. Wuttke ◽  
Michael G. Zammit ◽  
Douglas J. Ball ◽  
John G. Nunan
Keyword(s):  
Rhodium Catalyst

scholarly journals Organocatalytic Asymmetric Synthesis of α-Amino Esters from Sulfoxonium Ylides

2021 ◽  
Author(s):  
Wengang Guo ◽  
Hai Huang ◽  
Jianwei Sun
Keyword(s):  
Asymmetric Synthesis ◽  
Insertion Reaction ◽  
Metal Catalyst ◽  
Insertion Reactions ◽  
Amino Esters ◽  
Carbene Insertion

Described here is the first organocatalytic asymmetric N−H insertion reaction of α-carbonyl sulfoxonium ylides. Without a metal catalyst, this reaction represents an attractive complement to the well-established carbene insertion reactions....

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