Synthesis of Benzoquinolizinium Salts by Rh(III)-Catalyzed Cascade Double <i>N</i>-Annulation Reactions of Allylamines, Diarylacetylenes, and HBF<sub>4</sub>
作者:Ye Ri Han、Su-Hyang Shim、Dong-Su Kim、Chul-Ho Jun
DOI:10.1021/acs.orglett.7b01175
日期:2017.6.2
A new cascade double N-annulation method has been developed for the synthesis of benzoquinolizinium salts. The process takes place between allylamines, internal alkynes, and HBF4 in the presence of Rh(III)/Cu(II) complexes and leads to formation of multisubstituted benzoquinolizinium salts. Importantly, the resulting benzoquinolizinium salts serve as fluorescent materials whose emission wavelengths
已经开发了一种新的级联双N-环化方法来合成苯并喹啉鎓盐。该过程在Rh(III)/ Cu(II)络合物的存在下,在烯丙胺,内部炔烃和HBF 4之间进行,并导致形成多取代的苯并喹啉鎓盐。重要的是,所得的苯并喹啉鎓盐用作荧光材料,其发光波长可通过选择合适的取代基来调节。