Photochemical direct C3 cyanoalkylation of quinoxalin-2(1H)-ones with cyclobutanone oxime esters under catalyst-free conditions DOI
Jing Liu, Liting Liu, Ziqiao Lei

и другие.

Tetrahedron Letters, Год журнала: 2024, Номер 153, С. 155363 - 155363

Опубликована: Ноя. 12, 2024

Язык: Английский

Organophotoelectrocatalytic C(sp2)–H alkylation of heteroarenes with unactivated C(sp3)–H compounds DOI

Qinhui Wan,

Xia-Die Wu,

Zhong-Wei Hou

и другие.

Chemical Communications, Год журнала: 2024, Номер 60(42), С. 5502 - 5505

Опубликована: Янв. 1, 2024

An organophotoelectrocatalytic method for the C(sp 2 )–H alkylation of heteroarenes with unactivated 3 compounds via dehydrogenation cross-coupling was developed.

Язык: Английский

Процитировано

28
Self-Catalyzed Sono-Photoinduced Arylation of Quinoxalin-2(1H)-ones with Arylhydrazines DOI

Yao-Dan Xu,

Yang Xing,

Hong‐Tao Ji

и другие.

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

Опубликована: Ноя. 25, 2024

Herein, the first example of self-catalyzed sono-photoinduced carbon-carbon bond formation was described. Combining advantages phototriggered self-catalysis and ultrasonic catalysis, a wide range 3-arylquinoxalin-2(1

Язык: Английский

Процитировано

8
Visible Light-Induced Radical Cascade Functionalization of Quinoxalin-2(1H)-ones: Three-Component 1,2-Di(hetero)arylation Approach with Styrenes and Thianthrenium Salts DOI

Sudip Sau,

Shinobu Takizawa, Hun Young Kim

и другие.

Organic Letters, Год журнала: 2024, Номер 26(41), С. 8821 - 8826

Опубликована: Окт. 9, 2024

The additive-free visible light-induced three-component 1,2-di(hetero)arylation of styrenes was developed using quinoxalin-2(1

Язык: Английский

Процитировано

4
Visible‐Light‐Induced Catalyzed C─H/N─H Cross Coupling of Quinoxalin‐2(1H)‐ones with Aliphatic Amines Using Mesoporous Graphitic Carbon Nitride DOI

Xueying Lin,

Chen Fan,

Mushou Cai

и другие.

ChemistrySelect, Год журнала: 2025, Номер 10(7)

Опубликована: Фев. 1, 2025

Abstract In this study, we report a visible‐light‐induced catalyzed C─H/N─H cross coupling of quinoxalin‐2(1 H )‐ones with aliphatic amines using DABCO (1,4‐diazabicyclo[2.2.2]octane) assisted mpg‐C 3 N 4 (mesoporous graphitic carbon nitride). This reaction yields 3‐aminoquinoxalin‐2(1 in moderate to high under room temperature conditions tetrahydrofuran as solvent and O 2 the sole oxidant. method displays good functional group tolerance, requires mild conditions, enables easy recovery reuse photocatalyst (4 recycles). pathway amination, which is predicated upon use both base an electron transfer agent, reveals through preliminary mechanistic investigation that involves radical process.

Язык: Английский

Процитировано

0
Cs2CO3-Mediated Annulation of Cyclopropane-1,1-dicarbonitriles with o-Benzenediamines: Access to Substituted 2-Aminoquinoxalines DOI
Haiwen Li, Xinyi Wan,

Wenzhe Cheng

и другие.

The Journal of Organic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 28, 2025

The Cs2CO3-mediated formal (4 + 2) cascade annulation strategy for the synthesis of 2-aminoquinoxalines has been developed using D–A cyclopropanes and o-benzenediamines as substrates. protocol provides an efficient method accessing a broad range 2-aminoquinoxaline derivatives in good to excellent yields with functional-group tolerance.

Язык: Английский

Процитировано

0
visible light-induced recyclable g-C3N4 catalyzed C-H/N-H cross-dehydrogenative coupling amination of Quinoxalin-2(1H)-ones DOI

Zongjie Ma,

Linzhao Li,

Gaoli Chen

и другие.

Tetrahedron, Год журнала: 2025, Номер unknown, С. 134707 - 134707

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Recent Advances in Photo-promoted Generalized C3-H Alkylation of Quinoxalin-2(1H)-ones DOI
Youpeng Zuo, Xu Bai, Cong Wang

и другие.

Organic & Biomolecular Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Recent advances in the photo-promoted C3–H alkylation reaction of quinoxalin-2(1 H )-ones with different agents.

Язык: Английский

Процитировано

0
Visible‐Light Mediated C‐3 Amination of Quinoxalin‐ 2(1H)‐ones via Electron Donor‐Acceptor Complexation DOI
Devidas A. More,

Parthasarathy Gayathri,

Kishor R. Thete

и другие.

Asian Journal of Organic Chemistry, Год журнала: 2024, Номер 13(8)

Опубликована: Май 22, 2024

Abstract The formation of carbon‐nitrogen bonds holds paramount importance in the realm synthetic organic chemistry, finding extensive applications synthesis pharmaceuticals, agrochemicals, and materials. Herein, we describe a novel EDA complex mediated, metal‐ photocatalyst‐free, visible‐light‐initiated direct C‐3 amination biologically important, quinoxalin‐2(1 H )‐one moiety. key to success lies photoactivated electron donor‐acceptor between amine, which undergo subsequent transfer reaction effect desired transformation. A diverse array 3‐aminoquinoxalin‐2(1 )‐ones were prepared employing this process yields are up 87%. This work represents significant advancement toward more environmentally friendly efficient approach, characterized by mild conditions high atom economy.

Язык: Английский

Процитировано

1
Recent advancements in visible-light-induced direct C(3)–H functionalization of quinoxalin-2(1H)-ones DOI Creative Commons

Xin Han,

Yifan Guo, Y. Hu

и другие.

Green Synthesis and Catalysis, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Язык: Английский

Процитировано

1
Photochemical direct C3 cyanoalkylation of quinoxalin-2(1H)-ones with cyclobutanone oxime esters under catalyst-free conditions DOI
Jing Liu, Liting Liu, Ziqiao Lei

и другие.

Tetrahedron Letters, Год журнала: 2024, Номер 153, С. 155363 - 155363

Опубликована: Ноя. 12, 2024

Язык: Английский

Процитировано

0