Visible-Light-Promoted C(sp3)–H Bond Functionalization toward Aminothiazole Skeletons from Active Methylene Ketones and Thioureas DOI
Haichang Guo, Lei Wang, Renhua Zheng

и другие.

Synthesis, Год журнала: 2023, Номер 55(13), С. 2091 - 2098

Опубликована: Фев. 14, 2023

Abstract A novel and efficient visible-light-induced method is developed for the one-pot synthesis of functionalized 2-aminothiazoles from easily accessible active methylene ketone derivatives different thioureas at room temperature. The mild reaction conditions, green chemistry, straightforward work-up, high yields products make this procedure useful construction 2-aminothiazole derivatives.

Язык: Английский

Visible-light-induced C(sp3)–H bromination of 4-methylthiophene derivatives with HBr/H2O2 DOI

Wen-Bo Song,

Ming Ma, Wenjing Zhang

и другие.

Organic & Biomolecular Chemistry, Год журнала: 2024, Номер 22(20), С. 4145 - 4152

Опубликована: Янв. 1, 2024

A convenient method to synthesize ethyl 4-(bromomethyl)thiophene-3-carboxylate derivatives has been developed

Язык: Английский

Процитировано

2
Visible-light-induced halocyclization of 2-alkynylthioanisoles with simple alkyl halides towards 3-halobenzo[b]thiophenes without an external photocatalyst DOI

Fen-Dou Wang,

Chunmiao Wang, Min Wang

и другие.

Organic & Biomolecular Chemistry, Год журнала: 2023, Номер 21(40), С. 8170 - 8175

Опубликована: Янв. 1, 2023

A new strategy for the preparation of 3-halobenzo[b]thiophenes via a photo-driven halocyclization/demethylation 2-alkynylthioanisoles with simple alkyl halides was developed. The reaction can proceed smoothly at room temperature under visible-light irradiation without any external photocatalyst, and protocol has range advantages, including simplicity mildness conditions, good functional-group tolerance, excellent yields products.

Язык: Английский

Процитировано

6
Visible-light-induced C(sp3)−H thiocyanation of pyrazolin-5-ones: a practical synthesis of 4-thiocyanated 5-hydroxy-1H-pyrazoles DOI
Xiu-Rong Hu, Haichang Guo,

Huajiang Jiang

и другие.

Organic & Biomolecular Chemistry, Год журнала: 2023, Номер 21(10), С. 2232 - 2235

Опубликована: Янв. 1, 2023

A direct, aerobic and visible light photocatalytic approach to synthesize 4-thiocyanated 5-hydroxy-1H-pyrazoles via cross-coupling of pyrazolin-5-ones with ammonium thiocyanate is described. Under redox-neutral metal-free conditions, a series could be easily efficiently obtained in good high yields by using low-toxicity inexpensive as the source.

Язык: Английский

Процитировано

5
Electrochemical Decarboxylative Minisci-Type Acylation of Quinoxalines under Catalyst- and External-Oxidant-Free Conditions DOI
Sen Liang, Kun Xu, Cheng‐Chu Zeng

и другие.

Synthesis, Год журнала: 2023, Номер 55(18), С. 3026 - 3032

Опубликована: Авг. 2, 2023

Abstract An electrochemical approach for the Minisci-type acylation of quinoxalines with α-keto acids as acyl radical precursors is reported. With assistance TFA key additive, acylated were constructed in synthetically useful yields. The distinguishable features this protocol include catalyst- and external oxidant-free conditions, operational simplicity.

Язык: Английский

Процитировано

5
Visible-Light-Promoted C(sp3)–H Bond Functionalization toward Aminothiazole Skeletons from Active Methylene Ketones and Thioureas DOI
Haichang Guo, Lei Wang, Renhua Zheng

и другие.

Synthesis, Год журнала: 2023, Номер 55(13), С. 2091 - 2098

Опубликована: Фев. 14, 2023

Abstract A novel and efficient visible-light-induced method is developed for the one-pot synthesis of functionalized 2-aminothiazoles from easily accessible active methylene ketone derivatives different thioureas at room temperature. The mild reaction conditions, green chemistry, straightforward work-up, high yields products make this procedure useful construction 2-aminothiazole derivatives.

Язык: Английский

Процитировано

4