Aryl Grignard Reagents in Chemodivergent N- and C-Arylations: Concise Access to Two Families of Tetracyclic Fused Carbazoles from 6-Nitroquinolines
作者:Juan Domingo Sánchez、Riccardo Egris、Subbu Perumal、Mercedes Villacampa、J. Carlos Menéndez
DOI:10.1002/ejoc.201101848
日期:2012.4
The reaction between aryl Grignard compounds and 5-methoxy-6-nitroquinoline derivatives in THF was found to proceed in a chemodivergent mode that depended on the functional groups present in the heterocyclic ring. Thus, the reactions that started from carbostyril derivatives afforded 6-(arylamino)carbostyrils as the major products, whereas those that started with 2-alkoxyquinolines gave exclusively