1372414-02-2Relevant articles and documents
Highly efficient oxidative dimerization of thioamides to 3,5-Disubstituted 1,2,4-thiadiazoles mediated by DDQ
Cheng, Dongping,Luo, Ruiwen,Zheng, Wen,Yan, Jizhong
, p. 2007 - 2013 (2012)
A highly efficient oxidative dimerization of thioamides by 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) is reported. The reaction is carried out in ClCH2CH2Cl at room temperature. The corresponding 3,5-disubstituted 1,2,4-thiadiazoles are obtained in good to excellent yields.
Eosin y catalyzed visible-light-driven aerobic oxidative cyclization of thioamides to 1,2,4-thiadiazoles
Srivastava, Vishnup.,Yadav, Arvindk.,Yadav, Laldhar S.
, p. 465 - 470 (2013/04/10)
A new approach for an efficient metal-free synthesis of 1,2,4-thiadiazoles from primary thioamides using visible light and air in the presence of eosin Y as a photoredox catalyst is reported. The protocol involves an aerobic oxidative cyclization of thioamides via the formation of C-N and C-S bonds to afford excellent yields of the products in a simple one-pot operation under mild conditions. Georg Thieme Verlag Stuttgart · New York.