抗真菌剂。第4部分:新型吲哚[1,2 - c ] -1,2,4-苯并三嗪衍生物的合成及其对植物病原真菌的抗真菌活性
摘要:
在叔丁基亚硝酸盐(t- BuONO)存在下,通过改良的Sandmeyer反应获得了一系列新型的吲哚[1,2 - c ] -1,2,4-苯并三嗪衍生物。与可商购的农用杀菌剂氨甲唑相比,其浓度为50μg/ mL时,两种吲哚[1,2 - c ] -1,2,4-苯并三嗪5h和5k表现出更有希望和更显着的抗真菌活性在体外对五种植物病原真菌的抵抗力。清楚地表明,在吲哚[1,2 - c ] -1,2,4-苯并三嗪(5a)的吲哚环上引入适当的取代基将导致更有效的衍生物。
Synthesis of oxazolidinones through ring-opening and annulation of vinylene carbonate with 2-pyrrolyl/indolylanilines under Rh(<scp>iii</scp>) catalysis
functionalization and subsequent intramolecular ring-opening/cyclization of vinylene carbonate with 2-pyrrolyl/indolylanilines, which leads to oxazolidinones in moderate to good yields. In this transformation, vinylene carbonate only eliminates one oxygen atom rather than –CO3 or CO2. Furthermore, some control experiments are conducted to elucidate the reaction mechanism.
Xu, Hui; Fan, Ling-Ling, Zeitschrift fur Naturforschung, B: Chemical Sciences, 2008, vol. 63, # 3, p. 298 - 302
作者:Xu, Hui、Fan, Ling-Ling
DOI:——
日期:——
Ultrasound-Assisted N-Arylation of Indoles without any Catalyst
作者:Hui Xu、Lei Lv、Ling-ling Fan、Xiao-qiang He
DOI:10.3987/com-07-s(n)1
日期:——
An efficient method for the ultrasound-assisted N-arylation of indoles with haloarenes in an air atmosphere mediated by CS2CO3 without any catalyst is reported. N-arylindoles are obtained in moderate to good yields while indoles cross-coupling with activated aryl halides (X = F or Cl).