A facile approach to 6-amino-2<i>H</i>-pyrano[2,3-g]isoquinolin-2-ones <i>via</i> a sequential Sonogashira coupling of 6-cyanoumbelliferone triflate and annulations with amines
作者:Alla V. Lipeeva、Makhmut M. Shakirov、Elvira E. Shults
DOI:10.1080/00397911.2019.1661480
日期:2019.12.2
Abstract Palladium-catalyzed synthesis of 2H-pyrano[2,3-g]isoquinolinones have been described from easily accessible precursor 6-cyanoumbelliferone triflate via sequential of Sonogashira coupling and the following annulations with several primary alkylamines under basic conditions The so obtained 6-propargylamino-2H-pyrano[2,3-g]isoquinolinones were involved in the CuAAC reaction with 2-azidobenzoic
摘要 钯催化合成 2H-吡喃并[2,3-g]异喹啉酮已经描述了从易于获得的前体 6-氰基伞形酮三氟甲磺酸酯通过 Sonogashira 偶联和以下与几种伯烷基胺在碱性条件下的环化的顺序获得的 6-炔丙基氨基-2H-吡喃并[2,3-g]异喹啉酮参与CuAAC与2-叠氮基苯甲酸的反应以获得含有1,2,3-三唑的2H-吡喃并[2,3-g]异喹啉-苯甲酸杂化化合物链接器。图形概要