38762-70-8

Upstream product

• 623-12-1 4-chloromethoxybenzene 
• 104-92-7 1-bromo-4-methoxy-benzene 
• 4768-87-0 sodium selenocyanate 
• 37773-20-9 4-methoxybenzeneselenol 
• 1694-07-1 4-methoxyphenyl methyl selenide 
• 80095-52-9 Lithium; 4-methoxy-benzeneselenolate 
• 7452-29-1 sodium O,O-diethyl phosphoroselenoate 
• 6293-71-6 4,4'-dimethoxydiphenyliodonium iodide 
• 33397-21-6 tris(4-methoxyphenyl)bismuth 
• 60-29-7 diethyl ether 
• 105-13-5 4-Methoxybenzyl alcohol 
• 100-42-5 styrene 
• 41924-24-7 [Ag(SePh)]_n 
• 13139-86-1 4-methoxyphenyl magnesium bromide 

Downstream Products

• 51978-88-2 4-methoxybenzeneseleninic acid 
• 67461-95-4 1,2-Bis-(4-methoxyphenylselenio)-benzene 
• 67461-98-7 1,2-Bis-(4-methoxy-phenylselanyl)-4-methyl-benzene 
• 53973-67-4 p-Anisyl-n-dodecylselenid 
• 74758-70-6 4-(4-Methoxy-phenylselanyl)-4-methyl-pentan-2-one 
• 74758-73-9 2-[1-(4-Methoxy-phenylselanyl)-1-methyl-ethyl]-5-methyl-cyclohexanone 
• 104637-91-4 2-<(4-methoxyphenyl)seleno>-1,3-dithiane 
• 84144-11-6 (Z)-3-(4-Methoxy-phenylselanyl)-but-2-enoic acid ethyl ester 
• 22216-66-6 bis(4-methoxyphenyl)selenide 
• 113555-98-9 4-methoxybenzoyl 4-methoxyphenyl selenide 
• 123775-87-1 (((4-methoxyphenyl)selanyl)ethynyl)trimethylsilane 
• 80095-52-9 Lithium; 4-methoxy-benzeneselenolate 
• 104637-93-6 r-2-<(4-methoxyphenyl)seleno>-trans-4,trans-6-dimethyl-1,3-dithiane 
• 41422-62-2 sodium 4-methoxyphenylselenolate 

Relevant academic research and scientific papers

Visible Light-Mediated C(sp2)–H Selenylation of Amino Pyrazole and Amino Uracils in the Presence of Rose Bengal as an Organophotocatalyst

Herein, we report an efficient methodology for the synthesis of alkyl, benzyl, and phenyl selenoethers of aminopyrazoles and aminouracils by C(sp2)–H functionalization in the presence of visible light and Rose Bengal as an organophotocatalyst. The reaction of amino pyrazole/iosothiazole/isoxazole or amino uracils with 0.5 equivalent of diphenyl/dibenzyl/diethyl diselenides in the presence of visible light in acetonitrile medium and a catalytic amount of Rose Bengal provided the corresponding phenyl, benzyl, or ethyl selenoethers in good to very good yields. We have also utilized some of the selenylated aminopyrazoles for the preparation of pyrazole-fused dihydropyrimidines tethered with arylselenoethers by a catalyst-free one-pot three-component reaction. The notable features of this methodology are metal-free reaction conditions, good to very good yields, use of an organic photocatalyst, and wide substrate scope; it is also applicable to gram-scale synthesis and provides selenoethers of medicinally important heterocycles such amio-pyrazole, isoxazole, isothiazole, and uracils.

Lead optimization generates selenium-containing miconazole CYP51 inhibitors with improved pharmacological profile for the treatment of fungal infections

A series of selenium-containing miconazole derivatives were identified as potent antifungal drugs in our previous study. Representative compound A03 (MIC = 0.01 μg/mL against C.alb. 5314) proved efficacious in inhibiting the growth of fungal pathogens. However, further study showed lead compound A03 exhibited potential hemolysis, significant cytotoxic effect and unfavorable metabolic stability and was therefore modified to overcome these drawbacks. In this article, the further optimization of selenium-containing miconazole derivatives resulted in the discovery of similarly potent compound B17 (MIC = 0.02 μg/mL against C.alb. 5314), exhibiting a superior pharmacological profile with decreased rate of metabolism, cytotoxic effect and hemolysis. Furthermore, compound B17 showed fungicidal activity against Candida albicans and significant effects on the treatment of resistant Candida albicans infections. Meanwhile, compound B17 not only could reduce the ergosterol biosynthesis pathway by inhibiting CYP51, but also inhibited biofilm formation. More importantly, compound B17 also shows promising in vivo efficacy after intraperitoneal injection and the PK study of compound B17 was evaluated. In addition, molecular docking studies provide a model for the interaction between the compound B17 and the CYP51 protein. Overall, we believe that these selenium-containing miconazole compounds can be further developed for the potential treatment of fungal infections.

Nickel-Catalyzed Intramolecular Decarbonylative Coupling of Aryl Selenol Esters

This report describes a method for Ni-catalyzed intramolecular decarbonylative coupling, which enables the conversion of areneselenol esters to diaryl selenides. The inexpensive and readily available catalyst can be employed under mild reaction conditions for the construction of structurally diverse diaryl selenides, including heterocyclic and natural product derivatives. (Figure presented.).

Visible Light-Promoted Selenylation/Cyclization of Enaminones toward the Formation of 3-Selanyl-4H-Chromen-4-Ones

A simple and efficient visible-light-promoted selenylation/cyclization of enaminones have been realized for the practical synthesis of 3-selanyl-4H-chromen-4-ones. This reaction is performed in the mild conditions, no transition metal catalyst or photocatalysts and no additional oxidants are required. In addition, the 3-selanyl-4H-chromen-4-ones could be easily converted to selanyl-functionalized pyrimidines by reacting with benzamidine substrates. (Figure presented.).

Enhancing the Potential of Miniature-Scale DNA-Compatible Radical Reactions via an Electron Donor-Acceptor Complex and a Reversible Adsorption to Solid Support Strategy

DNA-encoded library (DEL) technology is a powerful tool in the discovery of bioactive probe molecules and drug leads. Mostly, the success in DEL technology stems from the molecular diversity of the chemical libraries. However, the construction of DELs has been restricted by the idiosyncratic needs and the required low concentration (～1 mM or less) of the library intermediate. Here, we report visible-light-promoted on-DNA radical coupling reactions via an electron donor-acceptor (EDA) complex and a reversible adsorption to solid support (RASS) strategy. This protocol provides a unique solution to the challenges of increasing the reactivity of highly diluted DNA substrates and reducing the residues of heavy metals from photocatalysts. A series of on-DNA indole sulfone and selenide derivatives were obtained with good to quantitative conversions. It is anticipated that these mild-condition on-DNA radical reactions will significantly improve the chemical diversity of DELs and find widespread utility to DEL construction.

Green preparation method of aryl diselenium ether type organic selenium compound

The invention discloses an aryl diselenium ether compound synthesis method. The synthesis method comprises the following steps: taking the compound represented by the formula (I) as a reaction raw material, CuBr as a catalyst, KOH in the condition Se, a reducing agent, a disproportionation reaction, water or ethanol as a solvent, and 60 °C. After completion of the reaction, the obtained reaction solution is subjected to post-treatment (if ethanol is recovered as solvent) to obtain the aryl diselenoether compound represented by the formula (II), the yield is close 100%, the subsequent treatment is simple, and a complex separation and purification method is not needed to obtain a pure product. The solvent is recovered as a solvent such as ethanol. , It is preferable. The method is more green. Economy, high efficiency, environmental protection.

Metal-free chalcogenation of cycloketone oxime esters with dichalcogenides

We report the metal-free chalcogenation of cycloketone oxime esters with dichalcogenides via a radical process. Because of the metal-free condition and use of readily accessible dichalcogenides, this method is an effective and green strategy for the synthesis of chalcogen-substituted butyronitrile.

Blue light-promoted radical sulfoximido-chalcogenization of aliphatic and aromatic alkenes

A transition metal-free synthesis ofN-(arylthio/seleno)ethyl sulfoxidminesviablue light-promoted radical sulfoximido-chalcogenization of aliphatic and aromatic alkenes was developed. The sulfoximidation process demonstrated high chemoselectivity and allowed a broad substrate scope, completing the sulfoximido-chalcogenization of alkenes in good yields.

Preparation of selenofunctionalized heterocycles via iodosobenzene-mediated intramolecular selenocyclizations of olefins with diselenides

An intramolecular selenocyclizations of olefins mediated by a commercially available hypervalent iodine(III) reagent, PhIO, was developed. This method provided access to a wide range of selenenylated heterocycles under ambient conditions. The striking advantages of this protocol over all previous methods include mild reaction conditions, easy operation, good yields, high levels of functional group compatibility, large–scale application and suitability for the late-stage functionalization of complex molecules of biological importance.

Metal-free synthesis of unsymmetrical selenides from pyridinium salts and diselenides catalysed by visible light

We report the first metal-free selenolations of pyridinium salts with diselenides to prepare unsymmetrical organoselenides catalysed by visible light. This protocol is an efficient and green method for the preparation of unsymmetrical organoselenides because metal-free conditions and readily accessible diselenides are used.