Jain, Leela; Saraswat, B. S.; Mehrotra, R. C., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1982, vol. 21, # 6, p. 583 - 585
Solvent-Free Synthesis and Safener Activity of Sulfonylurea Benzothiazolines
作者:Ying Fu、Jing-Yi Wang、Dong Zhang、Yu-Feng Chen、Shuang Gao、Li-Xia Zhao、Fei Ye
DOI:10.3390/molecules22101601
日期:——
A series of novel sulfonylurea benzothiazolines was designed by splicing active groups and bioisosterism. A solvent-free synthetic route was developed for the sulfonylurea benzothiazoline derivatives via the cyclization and carbamylation. All compounds were characterized by IR, 1H-NMR, 13C-NMR, HRMS. The biological activity tests indicated the compounds could protect maize against the injury caused
Conversion of bis(o-nitrophenyl)disulfides to heterocycles containing sulfur and nitrogen by the action of samarium diiodide
作者:Weihui Zhong、Xiaoyuan Chen、Yongmin Zhang
DOI:10.1002/hc.1025
日期:——
Treatment of bis(o-nitrophenyl)disulfides 1 with SmI2 led to simultaneous reduction of nitro groups and reductive cleavage of S–S bonds as well as the formation of the active intermediates 2. The intermediates 2 reacted smoothly with aldehydes or ketones, acid chlorides or anhydrides, α-bromoketones, and α,β-unsaturated ketones at room temperature to afford the desired benzothiazolines 3, benzothiazoles