838821-95-7

Basic information

• Product Name: Cyclopentanecarboxylic acid, 2-oxo-1-(3-oxo-1-phenylbutyl)-, ethyl ester
• CAS NO: 838821-95-7
• Molecular Formula: C18H22O4
• Molecular Weight: 302.37
• Mol File: 838821-95-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Cyclopentanecarboxylic acid, 2-oxo-1-(3-oxo-1-phenylbutyl)-, ethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Cyclopentanecarboxylic acid, 2-oxo-1-(3-oxo-1-phenylbutyl)-, ethyl ester(838821-95-7)
• EPA Substance Registry System: Cyclopentanecarboxylic acid, 2-oxo-1-(3-oxo-1-phenylbutyl)-, ethyl ester(838821-95-7)

Safety Data

• Hazardous Substances Data: 838821-95-7(Hazardous Substances Data)

Upstream product

• 611-10-9 2-ethoxycarbonyl-1-cyclopentanone 
• 1896-62-4 (E)-benzalacetone 
• 71-43-2 benzene 
• 40702-70-3 ethyl 2-oxo-cyclopentanecarboxylate potassium salt 

Relevant articles and documents

Electrochemically responsive heterogeneous catalysis for controlling reaction kinetics

We report a method to control reaction kinetics using electrochemically responsive heterogeneous catalysis (ERHC). An ERHC system should possess a hybrid structure composed of an electron-conducting porous framework coated with redox-switchable catalysts. In contrast to other types of responsive catalysis, ERHC combines all the following desired characteristics for a catalysis control strategy: continuous variation of reaction rates as a function of the magnitude of external stimulus, easy integration into fixed-bed flow reactors, and precise spatial and temporal control of the catalyst activity. Herein we first demonstrate a facile approach to fabricating a model ERHC system that consists of carbon microfibers with conformal redox polymer coating. Second, using a Michael reaction whose kinetics depends on the redox state of the redox polymer catalyst, we show that use of different electrochemical potentials permits continuous adjustment of the reaction rates. The dependence of the reaction rate on the electrochemical potential generally agrees with the Nernstian prediction, with minor discrepancies due to the multilayer nature of the polymer film. Additionally, we show that the ERHC system can be employed to manipulate the shape of the reactant concentration-time profile in a batch reactor through applying customized potential-time programs. Furthermore, we perform COMSOL simulation for an ERHC-integrated flow reactor, demonstrating highly flexible manipulation of reactant concentrations as a function of both location and time. (Chemical Equation Presented).

Monomeric metal aqua complexes in the interlayer space of montmorillonites as strong Lewis acid catalysts for heterogeneous carbon-carbon bond-forming reactions

Montmorillonite-enwrapped copper and scandium catalysts (Cu2-- and Sc3+-monts) were easily prepared by treating Na--mont with the aqueous solution of the copper nitrate and scandium triflate, respectively. The resulting Cu2+- and Sc3+-monts showed outstanding catalytic activities for a variety of carbon-carbon bond-forming reactions, such as the Michael reaction, the Sakurai-Hosomi allylation, and the Diels-Alder reaction, under solvent-free or aqueous conditions. The remarkable activity of the mont catalysts is attributable to the negatively charged silicate layers that are capable of stabilizing metal cations. Furthermore, these catalysts were reusable without any appreciable loss in activity and selectivity. The Cu2+-mont-catalyzed Michael reaction proceeds via a ternary complex in which both the 1,3-dicarbonyl compound and the enone are coordinated to a Lewis acid Cu2+ center.