作者:Joan Bosch、Tomàs Roca、Juan-Lorenzo Catena、Carles Farrerons、Ignasi Miquel
DOI:10.1055/s-2000-6396
日期:——
A procedure for the synthesis of 5-(arylsulfanyl)-2,3-dihydro-6-sulfonamido-3-benzofuranones (1) via 5-bromo-3-methoxy-6-nitrobenzofuran (4) as a common advanced synthetic intermediate has been developed. The key step consists of a regioselective nucleophilic aromatic substitution of the bromine atom of 4 by an aryl or heteroarylthiol.
已开发出一种合成5-(芳基硫基)-2,3-二氢-6-磺酰氨基-3-苯并呋喃酮(1)的程序,该合成以5溴-3-甲氧基-6-硝基苯并呋喃(4)作为共先进合成中间体。关键步骤是4中溴原子的区域选择性亲核芳香取代反应,取代反应中使用芳基或杂芳基硫醇。