Iodine-induced efficient construction of a chromone-linked furo-[3,2- c ]chromene scaffold by a one-pot 3-component cascade reaction
作者:Jaydip Ghosh、Pritam Biswas、Tapas Sarkar、Chandrakanta Bandyopadhyay
DOI:10.1016/j.tetlet.2015.11.046
日期:2015.12
A novel and efficient method for the construction of 4-(3-chromonyl)furo[3,2-c]-1-benzopyran scaffold by molecular iodine-induced cascade reaction between 3-(1-alkynyl)chromone and 1-(2-hydroxyphenyl)-3-N,N-dimethylaminoprop-2-ene-1-one is described. Two new C–O, one C–C, and one C–I bonds are formed in this one-pot cascade reaction. This tandem process involves Michael addition and double annulation
通过分子碘诱导的3-(1-炔基)色酮与1-(2)间的级联反应构建4-(3-色酰基)呋喃并[3,2 - c ] -1-苯并吡喃骨架的新颖有效的方法描述了(-羟基苯基)-3 - N,N-二甲基氨基丙-2-烯-1-酮。在这一一锅级联反应中形成了两个新的C–O,一个C–C和一个C–I键。此串联过程涉及在温和条件下进行迈克尔加成和双环化反应,无需使用过渡金属,惰性气氛或干燥溶剂。产品的脱碘也完成了。