73035-26-4

Upstream product

• 94-02-0 ethyl 3-oxo-3-phenylpropionate 
• 100-52-7 benzaldehyde 
• 109-77-3 malononitrile 
• 39626-31-8 ethyl 2-benzoyl-3-phenylacrylate 
• 54797-42-1 2-oxo-2-phenylethyl propionate 

Downstream Products

• 70183-20-9 4-(4-chlorophenyl)-6-oxo-2-phenyl-1,6-dihydro-5-pyrimidinecarbonitrile 
• 75617-36-6 ethyl 5-cyano-1,6-dihydro-6-oxo-2,4-diphenyl-3-pyridinecarboxylate 
• 75617-38-8 3-cyano-5-ethoxycarbonyl-4,6-diphenyl-3,4-dihydropyridin-2(1H)-one 
• 75617-39-9 2-amino-5-carbethoxy-3-cyano-4,6-diphenylpyridine 
• 107200-04-4 2-(N-Acetylamino)-5-ethoxycarbonyl-4,6-diphenyl-4H-pyran-3-carbonitrile 
• 709-79-5 (E)-2-cyano-3-phenylacrylamide 
• 2216-94-6 phenylpropynoic acid ethyl ester 

Relevant academic research and scientific papers

Synthesis of pyridinium-based salts: Catalytic application at the synthesis of six membered O-heterocycles

In this paper, a range of pyridinium-based ionic liquid (IL) and molten salts (MSs) with various counter ions were designed, synthesized and fully characterized. These novel ionic liquid and molten salts were prepared via the reaction of [PySO3

New tacrine-derived AChE/BuChE inhibitors: Synthesis and biological evaluation of 5-amino-2-phenyl-4H-pyrano[2,3-b]quinoline-3-carboxylates

A series of poly-functionalized tacrine-derived compounds namely 5-amino-2-phenyl-4H-pyrano[2,3-b]quinoline-3-carboxylates were designed and synthesized as cholinesterases inhibitors. The in?vitro inhibition assay against AChE and BuChE demonstrated that most of compounds had potent AChE inhibitory with reserving potential of BuChE inhibition. Among them, compound 6i bearing a 4-(3-bromophenyl) moiety showed the most potent activity against AChE/BuChE (IC50s values of 0.069 and 1.35?μM, respectively). The anti-AChE activity of 6i was five times more than that of tacrine. The SAR study revealed that chloro/bromo substituent at ortho or meta position of the 4-phenyl ring can improve the anticholinesterase activity.

Dibutylamine-catalysed efficient one-pot synthesis of biologically potent pyrans

An expedient, eco-friendly and efficient procedure for the preparation of novel pyran derivatives has been developed through a solvent-free, one-pot reaction of various aldehydes, malononitrile and either methylacetoacetate or ethyl benzoylacetate in the presence of dibutylamine (2.5 mol %) at room temperature. This procedure is advantageous because it is mild, environmentally friendly, gives high yields and requires short reaction times. Furthermore, the product did not necessitate separation via extraction and column chromatography.

A Novel Synthesis of Some 1,4-Phenylene-bis-heterocyclic Derivatives and of Some Pyran, Pyrano[2,3-c]pyrazole, and Pyrano[2,3-d]pyrimidine Derivatives [1]

p-Diacetyl benzene 1 undergoes bromination to afford p-bromoacetyl phenacyl bromide 2. Compound 2 reacts with twofold excess of malononitrile to afford 2-{2-[4-(3,3-Dicyanopropionyl)-phenyl]-2-oxo-ethyl}-malononitrile 3. Compound 3 could be cyclized to af

Organocatalysis in synthesis: L-proline as an enantioselective catalyst in the synthesis of pyrans and thiopyrans

The multicomponent reaction (MCR) of aromatic aldehydes 1 and malononitrile (2) with active methylenes 5a-h in the presence of L-proline produced pyrans and thiopyrans 6a-h stereospecifically and in good yields. Moreover a novel MCR of ethyl propiolate (8) with 1 and 2 in the presence of L-proline to afford (R)-polysubstituted pyran is also reported. X-ray structures, e.e. and optical activity of the synthesized compounds indicated that L-proline as a catalyst is responsible for the observed enantioselectivity in the studied reactions.