24302-12-3

Upstream product

• 5292-53-5 diethyl benzalmalonate 
• 124-38-9 carbon dioxide 
• 100-52-7 benzaldehyde 
• 6148-64-7 ethyl potassium malonate 

Downstream Products

• 173221-15-3 E-ethyl tert-butylamidobenzalmalonate 
• 934619-02-0 (E)-3-phenyl-2-trityloxycarbamoylacrylic acid 
• 4192-77-2 ethyl cinnamate 

Relevant academic research and scientific papers

Copper-Catalyzed Carboxylation of C-F Bonds with CO2

An effective Cu-catalyzed selective formal carboxylation of C-F bonds with an atmospheric pressure of CO2 is reported. A variety of gem-difluoroalkenes, gem-difluorodienes, and α-trifluoro-methyl alkenes show high reactivity and selectivity for

Structure-activity relationships and blood distribution of antiplasmodial aminopeptidase-1 inhibitors

Malaria is a severe infectious disease that causes between 655 000 and 1.2 million deaths annually. To overcome the resistance to current drugs, new biological targets are needed for drug development. Aminopeptidase M1 (PfAM1), a zinc metalloprotease, has

Synthesis of polysubstituted 1,3-cyclohexadicnes from β-branched α,β-alkenals and monoesters of ylidenemalonic acids

3-Methyl- and 3-phenyl-2-butenal react with monoesters of alkylidene-, alkenylidene-, and arylmethylenemalonic acids in the presence of piperidine as the catalyst to give esters of 4,6-disubstituted 1,3-cyclohexadienecarboxylic acids in 23-96 % yields. Under the same conditions cyclohexylideneacetic aldehyde reacts with the monoesters of prenylidene- and benzylidenemalonic acid to afford mixtures of 1,8a-trans- and 1,8a-cis-isomers of 1-substituted alkyl 1,5,6,7,8,8a-hexahydronaphthalene-2-carboxylates, the ratios and configurations of which were determined by means of 1H NMR spectroscopy. In some cases the formation of cyclic dienes is impeded by the competing process of decarboxylation of acidic ylidenemalonates. The derivatives of 4,6-diphenyl-1,3-cyclohexadienecarboxylic acid were shown to be convenient precursors for the preparation of meta-terphenyls.

A process for the synthesis of βketoesters using in-situ generated (trimethylsilyl)malonates

(TMS)ethyl malonate can be generated in-situ by treating potassium ethyl malonate with trimethylsilyl chloride and acylated with aliphatic or aromatic acyl imidazoles or chlorides in the presence of DBU to prepare a variety of β-ketoesters. This constitutes a high yield method for preparing β-ketoesters, which also can be extended to the formation of alkylidene malonates.

Enzyme-Catalyzed Hydrolyses of E/Z-Diastereotopic and E/Z-Diastereomeric Esters. Affect on Selectivity by Reaction Media

PLE-catalyzed hydrolyses of different types of E/Z-diastereotopic diesters and E/Z-diastereomeric monoesters have been studied.Arylidenepropanedioic diesters are specifically hydrolyzed to the Z-half esters, whereas the de values for dialkylated methylene propanedioic diesters range between 33 and 79percent (Z).D values for the hydrolyses of the 3-methyleneazetidin-2-ones in detergent-buffer systems depend on the size of the substituent in the α-position.Diastereoselectivity of these substrates is affected by addition of the cosolvents acetonitrile and methanol.