作者:Michael Detty、Brandon Calitree
DOI:10.1055/s-0029-1218535
日期:2010.1
Novel rhodamine dyes were prepared from xanthone precursors in a ‘one-pot’ procedure via reaction of the xanthone with trifluoromethanesulfonic anhydride followed by Pd-mediated Suzuki coupling between the xanthone triflate and an arylboroxin. Rhodamines with 9-(3- or 4-carboxyphenyl) and 9-(3-nitrophenyl) substituents were prepared by this procedure. The procedure also works well with thio- and selenoxanthones, but not with telluroxanthones.
新型罗丹明染料是通过“一锅法”从香豆素前体制备的,该方法涉及香豆素与三氟甲基磺酸酐反应,随后再进行钯介导的铃木耦合,将香豆素三氟甲基磺酸酯与芳基硼烷反应。通过该程序制备了9-(3-或4-羧基苯基)和9-(3-硝基苯基)取代的罗丹明。该方法同样适用于硫香豆素和硒香豆素,但不适用于碲香豆素。