P(OEt)3-Mediated Formal S–H Insertion: Reductive Couplings of Isatins with Thiols to Generate 3-Sulfenylated Oxindoles
作者:Dulin Kong、Mingshu Wu、Tiao Huang、Li Liu、Qinghe Wang
DOI:10.1055/s-0040-1707147
日期:2020.9
Abstract A new P(OEt)3-mediated formal S–H bond-insertion reaction of isatins into thiols for the synthesis of valuable 3-sulfenylation oxindoles has been developed. This approach takes advantage of the unique reactivity of Kukhtin–Ramirez adducts to allow direct reductive S–H functionalization with commercially available and bench-stable starting materials.
Synthesis and Antimicrobial Study of Novel 1-Benzylated Water-Soluble Isatin-3-hydrazones
作者:Andrei V. Bogdanov、Ilyuza F. Zaripova、Alexandra D. Voloshina、Anastasia S. Sapunova、Natalia V. Kulik、Julia K. Voronina、Vladimir F. Mironov
DOI:10.1002/cbdv.201800088
日期:2018.6
A high‐yield synthesis of some novel isatin‐3‐acylhydrazones on the base of 5‐ethylisatin derivatives and Girard's reagent T is described. Antimicrobial activity preliminary SAR study of both 1‐benzylated isatins and water‐soluble hydrazones was established. The most active against Staphylococcus aureus and Bacillus cereus are ammonium salts bearing 3,4‐dichloro‐ or 4‐CF3 substituents in benzyl fragment
描述了以 5-乙基靛红衍生物和 Girard 试剂 T 为基础的一些新型靛红-3-酰基腙的高产合成。建立了 1-苄基化靛红和水溶性腙的抗菌活性初步 SAR 研究。对金黄色葡萄球菌和蜡状芽孢杆菌最有效的是在苄基片段中带有 3,4-二氯-或 4-CF3 取代基的铵盐。