Investigation of Electrocatalytic Oxidative Coupling of Arylamines for the Selective Synthesis of Azo Aromatics DOI

Pooja Soam,

Vikas Tyagi

The Journal of Organic Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Сен. 28, 2024

An electrochemical oxidative coupling of anilines to selectively provide azo aromatic compounds by using mild reaction conditions has been investigated. Further, the generality and feasibility developed protocol were showcased synthesizing differently substituted in moderate good isolated yields. Additionally, different control experiments performed investigate mechanism. These indicated formation hydrazobenzene as an intermediate while ruling out possibility nitrobenzene or nitroso-benzene during this transformation.

Язык: Английский

Heterogeneously Catalyzed Energy Release in Azaborinine-based Molecular Solar Thermal Systems DOI Creative Commons
Zarah Hussain, Ralf Einholz, Sonja M. Biebl

и другие.

Topics in Catalysis, Год журнала: 2025, Номер unknown

Опубликована: Апрель 10, 2025

Язык: Английский

Процитировано

0

An Azobenzene‐Based Liquid Molecular Solar Thermal (MOST) Storage System–Energy Carrier and Solvent DOI Creative Commons
Dominic Schatz,

Conrad Averdunk,

Rouven Fritzius

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Июнь 2, 2025

Abstract A molecular solar thermal (MOST) storage systems is based on capturing energy via photoisomerization, which can be released later as energy. Herein, the low viscosity, green light active, 2,6‐difluoroazobenzene introduced, efficiently irradiated, pumped, and handled in its neat state. Synthesis well isomerization done conveniently a continuous flow setup. Storage densities of 218 kJ kg −1 for 100% ( Z )‐isomer (137 after irradiation) are highest compared to other liquid azobenzenes (ABs). Additionally, irradiation with processibility state make this compound promising candidate applications. Furthermore, AB employed MOST‐active solvent. For example, solvation an electrolyte demonstrated induce measurable conductivity, then allows complete electron‐catalyzed back‐isomerization. Alternatively, it act solvent higher MOST material. As proof‐of‐concept norbornadiene (NBD) dissolved allowing utilize NBD Further optimization solute‐solvents required fully harvest potential new concept efficient storage.

Язык: Английский

Процитировано

0

Phenylazo-BODIPYs: Direct Access via Pd-Catalysis DOI
Daniel B. Werz, Sebastian H. Röttger,

Anjuli J. Birk

и другие.

Synlett, Год журнала: 2024, Номер unknown

Опубликована: Апрель 6, 2024

Abstract A new type of functionalized BODIPY dyes is described. Utilizing an established procedure for Buchwald–Hartwig reactions, we have been able to convert α-chloro BODIPYs α-azo-BODIPYs using phenylhydrazines. Optimization the reaction conditions and variation core phenylhydrazine were conducted. Absorption emission spectra recorded.

Язык: Английский

Процитировано

1

Modular Cascade of Flow Reactors: Continuous Flow Synthesis of Water‐Insoluble Diazo Dyes in Aqueous System DOI

Jihong Ouyang,

Wenbo Yang,

Zhaoyan Guo

и другие.

ChemSusChem, Год журнала: 2024, Номер unknown

Опубликована: Май 4, 2024

Abstract Continuous flow synthesis is pivotal in dye production to address batch‐to‐batch variations. However, synthesizing water‐insoluble dyes an aqueous system poses a challenge that can lead clogging. This study successfully achieved the safe and efficient of azo by selecting optimizing reactor modules for different reaction types two‐step implementing cascade cooperation. Integrating continuous microreactor with stirred tank (CSTR) enabled Sudan Yellow 3G without introducing water‐soluble functional groups or using organic solvents enhance solubility. Optimizing conditions (acidity/alkalinity, temperature, residence time) within initial modular resulted remarkable 99.5% isolated yield, 98.6 % purity, rate 2.90 g h −1 . Scaling‐up based on module characteristics further increased 74.4 while maintaining high yield purity. The construction this small 3D‐printing cascaded process scaling‐up provide technical support dyes, particularly high‐market‐share dyes. Moreover, versatile methodology proves applicable processes involving various homogeneous heterogeneous cascades.

Язык: Английский

Процитировано

1

Recent Advances in the Synthetic Applications of Nitrosoarene Chemistry DOI
Feng Lin, Rongzhi Tang, Sheng Liu

и другие.

Organic & Biomolecular Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 20, 2024

This review covers reactions involving nitrosoarenes over the last decade, including cyclization, with attacks at oxygen or nitrogen terminus, dimerization, rearrangement, coordination, and other significant reactions.

Язык: Английский

Процитировано

1

Investigation of Electrocatalytic Oxidative Coupling of Arylamines for the Selective Synthesis of Azo Aromatics DOI

Pooja Soam,

Vikas Tyagi

The Journal of Organic Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Сен. 28, 2024

An electrochemical oxidative coupling of anilines to selectively provide azo aromatic compounds by using mild reaction conditions has been investigated. Further, the generality and feasibility developed protocol were showcased synthesizing differently substituted in moderate good isolated yields. Additionally, different control experiments performed investigate mechanism. These indicated formation hydrazobenzene as an intermediate while ruling out possibility nitrobenzene or nitroso-benzene during this transformation.

Язык: Английский

Процитировано

0