作者:Laura Ortiz‐Rojano、Jaime Rojas‐Martín、Ciro Rodríguez‐Diaz、M. Carmen Carreño、Maria Ribagorda
DOI:10.1002/chem.201904138
日期:2019.11.27
Quinones were firstly used as dipolarophiles in a photoclick 1,3-cycloaddition with 2,5-diaryltetrazoles, as photoactivatable predipoles, providing a novel and efficient access to three types of pyrazole-fused quinones (indazoledione derivatives). Distinctive features of this protocol include the use of light as the unique reagent and readily available, stable, and easy to handle starting materials
醌首先被用作与2,5-二芳基四唑发生光点击的1,3-环加成反应中的偶极亲子,作为可光活化的偶极子,提供了新颖有效的途径来获得三种类型的吡唑稠合醌(吲唑二酮衍生物)。该协议的显着特征包括使用光作为独特的试剂,并且容易获得,稳定且易于处理的起始原料,并且产率高至优异。还详细介绍了醌的光物理和电化学性质及其作为光氧化还原催化剂的潜在应用。