17626-87-8Relevant articles and documents
Visible-light induced decarboxylative C2-alkylation of benzothiazoles with carboxylic acids under metal-free conditions
Wang, Bin,Li, Pinhua,Miao, Tao,Zou, Long,Wang, Lei
, p. 115 - 121 (2019)
An effective protocol of photoredox catalyzed C2-alkylation of benzothiazoles with aliphatic carboxylic acids was disclosed. In the presence of an acridinium salt as a photocatalyst and air as an oxidant, a wide range of secondary or tertiary aliphatic ca
Visible-light-promoted photocatalyst-free alkylation and acylation of benzothiazoles
Jiang, Pengxing,Liu, Li,Tan, Jiajing,Du, Hongguang
supporting information, p. 4487 - 4491 (2021/05/31)
Herein we report a protocol for the visible-light-mediated alkylation/acylation reaction of benzothiazoles. Alkyl/acyl substituted Hantzsch esters are easily prepared and rationally used as radical precursors. In the presence of BF3·Et2O and Na2S2O8, various benzothiazole derivatives were readily obtained in good yields. Our user-friendly protocol can proceed by simple irradiation with blue LEDs (λ = 465 nm) and without the assistance of external photocatalysts. The reaction is also characterized by mild conditions and scalability, thus offering an alternative and efficient tool for the synthesis of 2-functionalized benzothiazoles.
Silver-mediated 2-arylation/alkylation/acylation of benzothiazoles with aldehydes in water
Hua, Min,Wang, Chunqin,Liu, Qixing,Chen, Danyi,Fu, Hao,Zhou, Haifeng
, p. 1226 - 1237 (2018/08/06)
An efficient and environmentally benign method was developed for the facile synthesis of various 2-aryl and 2-alkyl substituted benzothiazoles in moderate to good yields, using a silver-mediated redox condensation of benzothiazoles and aldehydes in water. Furthermore, this method is also applicable to prepare 2-acyl benzothiazoles.