Synergistic Cooperative Effect of Sodium borohydride-Iodine Towards Cascade C−N and C−S/Se Bond Formation: One-pot Regioselective Synthesis of 3-Sulfenyl/selenyl Indoles and Mechanistic Insight
作者:Aditya G. Lavekar、Danish Equbal、Saima、Arun K. Sinha
DOI:10.1002/adsc.201701028
日期:2018.1.4
into synergistic cooperative effect of NaBH4‐I2 which allows cascade C−N and C−S/C−Se bond formations via reduction‐nucleophilic cyclization‐chalcogenylation, three steps in one‐pot, towards regioselective synthesis of diverse 3‐chalcogenyl indoles including 5‐bromo‐3‐[(3,4,5‐trimethoxyphenyl)thio]‐1H‐indole, a known lead anticancer compound, directly from 2‐amino‐phenacylchlorides and thiophenols or
在这项工作中,报道了一种合成3-亚磺酰基/硒基吲哚的新策略,其中LC-MS揭示了对NaBH 4 -I 2的协同协同作用的新颖见解,该协同作用允许级联CN和CS / C-Se键通过还原-亲核环化-硫代烷基化反应形成三步反应,形成区域选择性合成各种3-硫代半胱氨酸吲哚,包括5-溴-3-[(3,4,5-三甲氧基苯基)硫代] -1H-吲哚已知的先导抗癌化合物,直接来自2-氨基-苯甲酰氯和硫酚或二硫化物/二硒化物在无过渡金属条件下的二恶烷水溶液中。