作者:Niranjan Panda、Priyadarshini Mishra、Irshad Mattan
DOI:10.1021/acs.joc.5b02602
日期:2016.2.5
annulation of 2-iodo enol esters leading to 4- and 3,4-substituted isocoumarins was accomplished selectively at room temperature. Coupling of 2-iodo benzoic acids with enolates that were produced in situ from the simple esters was also performed to produce isocoumarins under analogous reaction conditions. Owing to the mildness of the current protocol, 4-acyl 3-substituted isocoumarins were efficiently produced
在室温下选择性地完成了银介导的2-碘烯醇酯的环化反应,产生4-和3,4-取代的异香豆素。在类似的反应条件下,还进行了2-碘苯甲酸与由简单酯原位生成的烯醇盐的偶联,以生产异香豆素。由于当前方案的温和性,有效地生产了4-酰基3-取代的异香豆素,而没有任何脱酰作用。