25844-67-1

Upstream product

• 93-89-0 benzoic acid ethyl ester 
• 93-17-4 3,4-dimethoxyphenylacetonitrile 
• 299216-05-0 4-(4,5-dimethoxy-2-iodophenyl)-5-(2-iodophenyl)isoxazole 

Downstream Products

• 132576-19-3 5-Amino-3-phenyl-4-(3,4-dimethoxyphenyl)pyrazole 
• 132576-20-6 5-Acetylamino-3-phenyl-4-(3,4-dimethoxyphenyl)pyrazole 
• 199795-90-9 1-benzyl-3-phenyl-4-(3,4-dimethoxyphenyl)-5-aminopyrazole 
• 107879-55-0 5-Methyl-1-phenyl-7,8-dimethoxypyrazolo<5,4-c>isoquinoline 
• 1346260-50-1 1-(3,4-dimethoxyphenyl)-2-(methoxyimino)-2-phenylethanone 
• 1369596-99-5 1-(3,4-dimethoxyphenyl)-5,6-dimethoxy-2-phenyl-1H-indene-1,3-dicarbonitrile 
• 5663-56-9 2-(3,4-dimethoxyphenyl)acetamide 
• 132576-25-1 5-Methyl-1-phenyl-7,8-dimethoxyisoxazolo<5,4-c>isoquinoline 
• 132576-24-0 5-Amino-3-phenyl-4-(3,4-dimethoxyphenyl)isoxazole 
• 130423-50-6 ethyl α-(3,4-dimethoxyphenyl)benzoylacetate 

Relevant academic research and scientific papers

Stereoselective C?C Oxidative Coupling Reactions Photocatalyzed by Zwitterionic Ligand Capped CsPbBr3 Perovskite Quantum Dots

Semiconductor quantum dots (QDs) have attracted tremendous attention in the field of photocatalysis, owing to their superior optoelectronic properties for photocatalytic reactions, including high absorption coefficients and long photogenerated carrier lifetimes. Herein, by choosing 2-(3,4-dimethoxyphenyl)-3-oxobutanenitrile as a model substrate, we demonstrate that the stereoselective (>99 %) C?C oxidative coupling reaction can be realized with a high product yield (99 %) using zwitterionic ligand capped CsPbBr3 perovskite QDs under visible light illumination. The reaction can be generalized to different starting materials with various substituents on the phenyl ring and varied functional moieties, producing stereoselective dl-isomers. A radical mediated reaction pathway has been proposed. Our study provides a new way of stereoselective C?C oxidative coupling via a photocatalytic means using specially designed perovskite QDs.

Oxidative aromatic C-O bond formation: synthesis of 3-functionalized benzo[b]furans by FeCl3-mediated ring closure of a-Aryl ketones

A variety of 3-functionalized benzo[b]furans were achieved by way of a FeCl3-medlated Intramolecular cyclization of electron-rich a-aryl ketones. The alkoxy substituent on the benzene ring In the substrates was essential for an efficient cyclization to occur. This novel method allows the construction of benzo[b]furan rings by joining the O-atom on the side chain to the benzene ring via direct oxidative aromatic C-O bond formation.

A straightforward synthetic pathway to phenanthro[9,10-d]heterocycles

A series of new 4,5-o,o-bis(haloaryl)pyrazoles was regioselectively prepared by a tandem amine exchange/heterocyclization. The intramolecular Stille-type biaryl coupling of the so-obtained pyrazole derivatives and previously prepared diarylisoxazoles led with high overall yields to the isolation of new phenanthro[9,10-d]pyrazoles and phenanthro[9,10- d]isoxazoles, respectively. The formation of dehalogenation products was efficiently avoided by use of heavy-wall pressure tubes.

SYNTHESIS OF FUNCTIONALLY SUBSTITUTED BENZOPYRYLIUM SALTS

Benzopyrylium salts that contain an acetyl, cyano, or ethoxycarbonyl group in the 4 position of the pyrylium ring were synthesized by the reaction of 3-(3,4-dimethoxyphenyl)pentane-2,4-dione and α-(3,4-dimethoxyphenyl)acetoacetonitrile and ethyl α-(3,4