Cascade iodination–fluorination synthesis of 2-fluorothiophene and 5-fluoro-2-thienyliodonium salts
作者:Petro P. Onys’ko、Tetyana V. Kim、Olena I. Kiseleva、Yuliya V. Rassukana、Andrei A. Gakh
DOI:10.1016/j.jfluchem.2009.02.001
日期:2009.5
synthesis of fluorine-containing 2-thienyliodonium salts was accomplished using cascade iodination–fluorination. According to this methodology, thiophene is first converted to bis(2-thienyl)iodonium hexafluorophosphate using an electrophilic iodination reaction. Upon heating with potassiumfluoride, this salt undergoes regioselective fluorination producing 2-fluorothiophene. 2-Fluorothiophene is then
Tandem thionation of biomass derived levulinic acid with Lawesson's reagent
作者:Zheng Li、Xing Tang、Yetao Jiang、Miao Zuo、Yangjun Wang、Wei Chen、Xianhai Zeng、Yong Sun、Lu Lin
DOI:10.1039/c6gc00566g
日期:——
Herein we report a tandem thionation of biomass derived levulinicacid (LA) to generate thiophenic compounds. LA is initially converted to several thiophenones then an aromatic di-thionated product, 5-methylthiophene-2-thiol, is...