Site-selective direct arylation of unprotected adenine nucleosides mediated by palladium and copper: insights into the reaction mechanism
作者:Thomas E. Storr、Andrew G. Firth、Karen Wilson、Kate Darley、Christoph G. Baumann、Ian J.S. Fairlamb
DOI:10.1016/j.tet.2008.01.062
日期:2008.6
Reaction conditions facilitating the site-selective direct aryl functionalisation at the C-8 position of adeninenucleosides have been identified. Many different aromatic components may be effectively cross-coupled to provide a diverse array of arylated adeninenucleoside products without the need for ribose or adenine protecting groups. The optimal palladium catalyst loading lies between 0.5 and 5 mol %